diff --git a/guider/guider.py b/guider/guider.py
index 7302d113..91a68d0c 100755
--- a/guider/guider.py
+++ b/guider/guider.py
@@ -7,7 +7,7 @@
 __credits__ = "Peace Lee"
 __license__ = "GPLv2"
 __version__ = "3.9.8"
-__revision__ = "241030"
+__revision__ = "241031"
 __maintainer__ = "Peace Lee"
 __email__ = "iipeace5@gmail.com"
 __repository__ = "https://github.com/iipeace/guider"
@@ -38146,7 +38146,7 @@ def getCmdList():
                 "irqtop": ("IRQ", "Linux"),
                 "kftop": ("Function", "Linux"),
                 "ktop": ("Function", "Linux"),
-                "mdtop": ("MemDump", "Linux"),
+                "mdtop": ("Memory", "Linux"),
                 "mtop": ("Memory", "Linux"),
                 "ntop": ("Network", "Linux/MacOS/Windows"),
                 "ptop": ("PMU", "Linux"),
@@ -40628,7 +40628,8 @@ def _getDesc(s, t=0):
                 elif SysMgr.checkMode("ftop"):
                     fileTopStr = topCommonStr
 
-                    helpStr = _getDesc("Monitor open files on the system")
+                    desc = "Monitor open files, sockets, pipes"
+                    helpStr = _getDesc(desc)
 
                     examStr = """
 Examples:
@@ -40681,7 +40682,7 @@ def _getDesc(s, t=0):
 
     See the top COMMAND help for more examples.
                     """.format(
-                        cmd, mode, "Monitor open files, sockets, pipes"
+                        cmd, mode, desc
                     )
 
                     helpStr += fileTopStr + examStr
@@ -40888,7 +40889,8 @@ def _getDesc(s, t=0):
 
                 # kernel function top #
                 elif SysMgr.checkMode("kftop"):
-                    helpStr = _getDesc("Monitor kernel function calls", t=1)
+                    desc = "Monitor kernel function calls"
+                    helpStr = _getDesc(desc, t=1)
 
                     helpStr += """
 Options:
@@ -40926,7 +40928,7 @@ def _getDesc(s, t=0):
                     """.format(
                         cmd,
                         mode,
-                        "Monitor kernel function calls",
+                        desc
                     )
 
                 # kernel top #
@@ -41084,9 +41086,8 @@ def _getDesc(s, t=0):
 
                 # atrace top #
                 elif SysMgr.checkMode("attop"):
-                    helpStr = _getDesc(
-                        "Monitor atrace events",
-                    )
+                    desc = "Monitor atrace events"
+                    helpStr = _getDesc(desc)
 
                     examStr = """
 Examples:
@@ -41120,16 +41121,15 @@ def _getDesc(s, t=0):
                     """.format(
                         cmd,
                         mode,
-                        "Monitor atrace events",
+                        desc
                     )
 
                     helpStr += topCommonStr + examStr
 
                 # memory dump top #
                 elif SysMgr.checkMode("mdtop"):
-                    helpStr = _getDesc(
-                        "Monitor memory details for a process using dumpsys meminfo",
-                    )
+                    desc = "Monitor memory details for a process using dumpsys"
+                    helpStr = _getDesc(desc)
 
                     examStr = """
 Examples:
@@ -41141,7 +41141,7 @@ def _getDesc(s, t=0):
                     """.format(
                         cmd,
                         mode,
-                        "Monitor memory details for a process using dumpsys meminfo",
+                        desc,
                     )
 
                     helpStr += topSubStr + topCommonStr + examStr
@@ -41433,18 +41433,17 @@ def _getDesc(s, t=0):
 
                 # stack top #
                 elif SysMgr.checkMode("stacktop"):
-                    helpStr = _getDesc(
-                        "Monitor kernel stacks for specific threads", t=3
-                    )
+                    desc = "Monitor kernel stacks for specific threads"
+                    helpStr = _getDesc(desc, t=3)
 
                     examStr = """
 Examples:
-    - Monitor kernel stacks for specific threads
+    - {2:1}
         # {0:1} {1:1} -g chrome
 
     See the top COMMAND help for more examples.
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                     helpStr += topSubStr + topCommonStr + examStr
@@ -41537,10 +41536,8 @@ def _getDesc(s, t=0):
 
                 # wss top #
                 elif SysMgr.checkMode("wtop"):
-                    helpStr = _getDesc(
-                        "Monitor WSS(Working Set Size) for specific processes",
-                        t=2,
-                    )
+                    desc = "Monitor WSS(Working Set Size) for specific processes"
+                    helpStr = _getDesc(desc, t=2)
 
                     examStr = r"""
 Examples:
@@ -41558,9 +41555,7 @@ def _getDesc(s, t=0):
 
     See the top COMMAND help for more examples.
                     """.format(
-                        cmd,
-                        mode,
-                        "Monitor WSS(Working Set Size) of specific processes",
+                        cmd, mode, desc,
                     )
 
                     helpStr += topSubStr + topCommonStr + examStr
@@ -41633,18 +41628,17 @@ def _getDesc(s, t=0):
 
                 # irq top #
                 elif SysMgr.checkMode("irqtop"):
-                    helpStr = _getDesc(
-                        "Monitor the status of irqs on the system"
-                    )
+                    desc = "Monitor the status of irqs on the system"
+                    helpStr = _getDesc(desc)
 
                     examStr = """
 Examples:
-    - Monitor the status of all irqs
+    - {2:1}
         # {0:1} {1:1}
 
     See the top COMMAND help for more examples.
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                     helpStr += topSubStr + topCommonStr + examStr
@@ -41684,7 +41678,8 @@ def _getDesc(s, t=0):
 
                 # ANDROID top #
                 elif SysMgr.checkMode("andtop"):
-                    helpStr = _getDesc("Monitor android logs")
+                    desc = "Monitor android logs"
+                    helpStr = _getDesc(desc)
 
                     examStr = """
 Examples:
@@ -41712,14 +41707,15 @@ def _getDesc(s, t=0):
 
     See the top COMMAND help for more examples.
                     """.format(
-                        cmd, mode, "Monitor android logs"
+                        cmd, mode, desc,
                     )
 
                     helpStr += topSubStr + topCommonStr + examStr
 
                 # DLT top #
                 elif SysMgr.checkMode("dlttop"):
-                    helpStr = _getDesc("Monitor DLT logs")
+                    desc = "Monitor DLT logs"
+                    helpStr = _getDesc(desc)
 
                     examStr = """
 Examples:
@@ -41754,14 +41750,15 @@ def _getDesc(s, t=0):
 
     See the top COMMAND help for more examples.
                     """.format(
-                        cmd, mode, "Monitor DLT logs"
+                        cmd, mode, desc,
                     )
 
                     helpStr += topSubStr + topCommonStr + examStr
 
                 # dbus top #
                 elif SysMgr.checkMode("dbustop"):
-                    helpStr = _getDesc("Monitor D-Bus messages")
+                    desc = "Monitor D-Bus messages"
+                    helpStr = _getDesc(desc)
 
                     examStr = """
 Examples:
@@ -41796,7 +41793,7 @@ def _getDesc(s, t=0):
 
     See the top COMMAND help for more examples.
                     """.format(
-                        cmd, mode, "Monitor D-Bus messages"
+                        cmd, mode, desc
                     )
 
                     helpStr += topSubStr + topCommonStr + examStr
@@ -41827,14 +41824,15 @@ def _getDesc(s, t=0):
 
                 # mount #
                 elif SysMgr.checkMode("mount"):
+                    desc = "Mount filesystem"
                     helpStr = """
 Usage:
     # {0:1} {1:1} -I <DEV:DIR:FS:FLAGS:DATA> [OPTIONS] [--help]
 
 Description:
-    Mount filesystem
+    {2:1}
                         """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                     helpStr += """
@@ -41850,26 +41848,27 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Mount filesystem
+    - {2:1}
         # {0:1} {1:1} "/dev/sda1:/data/fs:ext4"
         # {0:1} {1:1} -I "/dev/sda1:/data/fs:ext4"
 
     - Remount filesystem
         # {0:1} {1:1} "/dev/sda1:/data/fs:ext4:REMOUNT,RDONLY"
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                 # umount #
                 elif SysMgr.checkMode("umount"):
+                    desc = "Unmount filesystem"
                     helpStr = """
 Usage:
     # {0:1} {1:1} -I <TARGET:FLAGS> [OPTIONS] [--help]
 
 Description:
-    Unmount filesystem
+    {2:1}
                         """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                     helpStr += """
@@ -41885,11 +41884,11 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Unmount filesystem
+    - {2:1}
         # {0:1} {1:1} "/dev/sda1"
         # {0:1} {1:1} -I "/dev/sda1"
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                 # getpid #
@@ -41942,7 +41941,8 @@ def _getDesc(s, t=0):
 
                 # less #
                 elif SysMgr.checkMode("less"):
-                    helpStr = _getDesc("Print files, pipe with pager", t=5)
+                    desc = "Print files, pipe with pager"
+                    helpStr = _getDesc(desc, t=5)
 
                     helpStr += """
 Options:
@@ -41979,7 +41979,7 @@ def _getDesc(s, t=0):
         # {0:1} {1:1} a.out
         # {0:1} {1:1} -I a.out
                     """.format(
-                        cmd, mode, "Print files, pipe with pager"
+                        cmd, mode, desc
                     )
 
                 # strings #
@@ -42020,14 +42020,15 @@ def _getDesc(s, t=0):
 
                 # sysrq #
                 elif SysMgr.checkMode("sysrq"):
+                    desc = "Write values to sysrq"
                     helpStr = """
 Usage:
     # {0:1} {1:1} VAL [OPTIONS] [--help]
 
 Description:
-    Write values to sysrq
+    {2:1}
                         """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                     helpStr += """
@@ -42040,14 +42041,14 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Write values to sysrq
+    - {2:1}
         # {0:1} {1:1} b
         # {0:1} {1:1} dle
 
     - Print values for sysrq
         # {0:1} {1:1} -l
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                 # cgroup #
@@ -42135,8 +42136,9 @@ def _getDesc(s, t=0):
 
                 # print #
                 elif SysMgr.checkMode("print"):
+                    desc = "Print target files"
                     helpStr = _getDesc(
-                        "Print files including compressed data", t=5
+                        "%s including compressed data" % desc, t=5
                     )
 
                     helpStr += """
@@ -42153,19 +42155,19 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Print target files
+    - {4:1}
         # {0:1} {1:1} -I a.out, a.tar, a.zip, a.gz, a.apk, a.xz, a.z
         # {0:1} {1:1} {2:1} -q EXCEPTFILE:"*100*"
         # {0:1} {1:1} -I a.zip -q PRINTRAW
 
-    - Print target files in compressed and BASE64-encoded data
+    - {4:1} in compressed and BASE64-encoded data
         # {0:1} {1:1} {3:1} test.xz.base64 -q BASE64
         # {0:1} {1:1} {3:1} test.gz.base64 -q BASE64
 
     - Print specific lines including specific words for target files
         # {0:1} {1:1} {2:1} -g "peace, best"
 
-    - Print target files to the output file
+    - {4:1} to the output file
         # {0:1} {1:1} {2:1} -o output.txt
 
     - Print the contents of target files as much as a specified size
@@ -42180,14 +42182,14 @@ def _getDesc(s, t=0):
         # {0:1} {1:1} {2:1} -q TAIL:"2024-06-25 12:00:00.000"
         # {0:1} {1:1} {2:1} -q TAIL:100, CONT
 
-    - Print target files in specific list
+    - {4:1} in specific list
         # {0:1} {1:1} {2:1} -q FILELIST:-1
         # {0:1} {1:1} {2:1} -q FILELIST:0:10
 
     - Print specific target files in compressed data
         # {0:1} {1:1} {3:1} -g "*.so"
 
-    - Print target files in compressed data in tree structure
+    - {4:1} in compressed data in tree structure
         # {0:1} {1:1} {3:1} -q PRINTTREE
         # {0:1} {1:1} {3:1} -q PRINTTREE, INCFILTER:"*test*", EXFILTER:"*zip"
 
@@ -42201,6 +42203,7 @@ def _getDesc(s, t=0):
                         mode,
                         '"a.out, test*.txt"',
                         '"a.zip, test*.apk"',
+                        desc,
                     )
 
                 # dump #
@@ -42871,10 +42874,8 @@ def _getDesc(s, t=0):
 
                 # hprof #
                 elif SysMgr.checkMode("hprof"):
-                    helpStr = _getDesc(
-                        "Record function calls allocating memory using perfetto",
-                        t=1,
-                    )
+                    desc = "Record function calls allocating memory"
+                    helpStr = _getDesc(desc + " using perfetto", t=1)
 
                     helpStr += """
 Options:
@@ -42988,15 +42989,14 @@ def _getDesc(s, t=0):
                     """.format(
                         cmd,
                         mode,
-                        "Record function calls allocating memory using perfetto",
+                        desc,
                         "-q TASKMON",
                     )
 
                 # sperf #
                 elif SysMgr.checkMode("sperf"):
-                    helpStr = _getDesc(
-                        "Record function calls using CPU using simpleperf", t=1
-                    )
+                    desc = "Record function calls consuming CPU"
+                    helpStr = _getDesc(desc + "using simpleperf", t=1)
 
                     helpStr += """
 Options:
@@ -43117,7 +43117,7 @@ def _getDesc(s, t=0):
                     """.format(
                         cmd,
                         mode,
-                        "Record function calls using CPU",
+                        desc,
                         "-q TASKMON",
                     )
 
@@ -43277,9 +43277,8 @@ def _getDesc(s, t=0):
 
                 # draw diff #
                 elif SysMgr.checkMode("drawdiff"):
-                    helpStr = _getDesc(
-                        "Draw diff graphs between report files", t=5
-                    )
+                    desc = "Draw diff graphs between report files"
+                    helpStr = _getDesc(desc, t=5)
 
                     myStr = """
     - {2:1}
@@ -43287,7 +43286,7 @@ def _getDesc(s, t=0):
                     """.format(
                         cmd,
                         mode,
-                        "Draw diff graphs between report files",
+                        desc,
                     )
 
                     helpStr += drawSubStr + drawExamStr + myStr
@@ -43295,14 +43294,12 @@ def _getDesc(s, t=0):
                 # flamegraph draw #
                 elif SysMgr.checkMode(["drawflame", "drawflamediff"]):
                     if SysMgr.checkMode("drawflame"):
-                        helpStr = _getDesc("Draw flame graph", t=5)
                         commonStr = "Draw a flame graph"
+                        helpStr = _getDesc(commonStr, t=5)
                         addStr = ""
                     else:
-                        helpStr = _getDesc(
-                            "Draw differential flame graph", t=5
-                        )
                         commonStr = "Draw a differential flame graph"
+                        helpStr = _getDesc(commonStr, t=5)
                         addStr = """
     - {2:1} between two files
         # {0:1} drawflame guider1.out.gz -q SAVESAMPLE:guider1.sample
@@ -43521,7 +43518,8 @@ def _getDesc(s, t=0):
 
                 # topdiff #
                 elif SysMgr.checkMode("topdiff"):
-                    helpStr = _getDesc("Diff top report files", t=5)
+                    desc = "Diff top report files"
+                    helpStr = _getDesc(desc, t=5)
 
                     helpStr += """
 Options:
@@ -43606,14 +43604,13 @@ def _getDesc(s, t=0):
     - {2:1} in JSON format
         # {0:1} {1:1} "tc*.out" -J
                     """.format(
-                        cmd, mode, "Diff top report files"
+                        cmd, mode, desc
                     )
 
                 # topsum #
                 elif SysMgr.checkMode("topsum"):
-                    helpStr = _getDesc(
-                        "Summarize a raw file for task top mode", t=5
-                    )
+                    desc = "Summarize raw data of the top report files"
+                    helpStr = _getDesc(desc, t=5)
 
                     helpStr += """
 Options:
@@ -43721,7 +43718,7 @@ def _getDesc(s, t=0):
                     """.format(
                         cmd,
                         mode,
-                        "Summarize raw data of the top report files",
+                        desc,
                         '"report*.out" -q CLASSIFYGROUP',
                     )
 
@@ -43772,8 +43769,9 @@ def _getDesc(s, t=0):
 
                 # pause #
                 elif SysMgr.checkMode("pause"):
+                    desc = "Pause specific threads"
                     helpStr = (
-                        _getDesc("Pause specific threads", t=3)
+                        _getDesc(desc, t=3)
                         + """
 Options:
     -g  <TID|COMM>              set task filter
@@ -43786,15 +43784,15 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Pause specific threads for 3 seconds
+    - {2:1} for 3 seconds
         # {0:1} {1:1} -g a.out -R 3
         # {0:1} {1:1} -g 1234 -R 3
         # {0:1} {1:1} -g "a*" -R 3
 
-    - Pause specific threads including a same process group
+    - {2:1} including a same process group
         # {0:1} {1:1} -g a.out -P
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                 # freeze #
@@ -44276,11 +44274,9 @@ def _getDesc(s, t=0):
 
                 # checkdup#
                 elif SysMgr.checkMode("checkdup"):
+                    desc = "Check duplicated page frames of specific processes"
                     helpStr = (
-                        _getDesc(
-                            "Check duplicated page frames of specific processes",
-                            t=2,
-                        )
+                        _getDesc(desc, t=2)
                         + """
 Options:
     -I  <FILE>                  set input path
@@ -44385,7 +44381,7 @@ def _getDesc(s, t=0):
                     """.format(
                         cmd,
                         mode,
-                        "Check all duplicated page frames of specific processes",
+                        desc,
                         "from leaktrace or mtrace reports",
                         "-I guider.out -q SHOWMEM",
                     )
@@ -45606,8 +45602,9 @@ def _getDesc(s, t=0):
 
                 # split #
                 elif SysMgr.checkMode("split"):
+                    desc = "Split files"
                     helpStr = (
-                        _getDesc("Split files", t=5)
+                        _getDesc(desc, t=5)
                         + """
 Options:
     -o  <FILE>                  set output path
@@ -45618,28 +45615,29 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Split files to 10M size
+    - {2:1} to 10M size
         # {0:1} {1:1} "guider.tgz, guider2.tgz" -q CHUNK:10m
 
-    - Split files into 5 files each
+    - {2:1} into 5 files each
         # {0:1} {1:1} "guider.tgz, guider2.tgz" -q COUNT:5
 
-    - Split files into 5 files of 10M size each
+    - {2:1} into 5 files of 10M size each
         # {0:1} {1:1} "guider.tgz, guider2.tgz" -q CHUNK:10M, COUNT:5
 
-    - Split files into 5 files of 10M size each from the back 
+    - {2:1} into 5 files of 10M size each from the back 
         # {0:1} {1:1} "guider.tgz, guider2.tgz" -q CHUNK:10M, COUNT:5, TAIL
 
-    - Split files to 10M size with file filter
+    - {2:1} to 10M size with file filter
         # {0:1} {1:1} "guider*.tgz" -q CHUNK:10m, TARGETFILE:"*.tgz", EXCEPTFILE:"*1*"
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                 # merge #
                 elif SysMgr.checkMode("merge"):
+                    desc = "Merge files"
                     helpStr = (
-                        _getDesc("Merge files", t=5)
+                        _getDesc(desc, t=5)
                         + """
 Options:
     -o  <FILE>                  set output path
@@ -45650,13 +45648,13 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Merge files into a new file
+    - {2:1} into a new file
         # {0:1} {1:1} "guider.tgz, guider2.tgz" -o guiderMerged.mg
 
-    - Merge files into a new file with file filter
+    - {2:1} into a new file with file filter
         # {0:1} {1:1} "guider*.tgz" -o guiderMerged.mg -q TARGETFILE:"*.tgz", EXCEPTFILE:"*1*"
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                 # comp #
@@ -45755,7 +45753,7 @@ def _getDesc(s, t=0):
                 # systat #
                 elif SysMgr.checkMode("systat"):
                     helpStr = (
-                        _getDesc("Print system status")
+                        _getDesc("Show system status")
                         + """
 Options:
     -e  <CHARACTER>             enable options
@@ -46002,8 +46000,9 @@ def _getDesc(s, t=0):
 
                 # convert #
                 elif SysMgr.checkMode("convert"):
+                    desc = "Convert a text file to a image file"
                     helpStr = (
-                        _getDesc("Convert a text file to a image file")
+                        _getDesc(desc)
                         + """
 Options:
     -v                          verbose
@@ -46012,10 +46011,10 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Convert a text file to a image file
+    - {2:1}
         # {0:1} {1:1} guider.out
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                 # drawreq #
@@ -46189,7 +46188,7 @@ def _getDesc(s, t=0):
                 # printkconf #
                 elif SysMgr.checkMode("printkconf"):
                     helpStr = (
-                        _getDesc("Print kernel configs")
+                        _getDesc("Show kernel configs")
                         + """
 Options:
     -g  <OPTION>                set value
@@ -46216,7 +46215,7 @@ def _getDesc(s, t=0):
                 # getaffinity #
                 elif SysMgr.checkMode("getafnt"):
                     helpStr = (
-                        _getDesc("Get CPU affinity of specific threads", t=3)
+                        _getDesc("Show CPU affinity of specific threads", t=3)
                         + """
 Options:
     -g  <TID|COMM>              set values
@@ -46227,27 +46226,28 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Get CPU affinity of specific threads
+    - {2:1}
         # {0:1} {1:1} -g a.out, 1234
         # {0:1} {1:1} "a.out, 1234"
 
-    - Get CPU affinity of specific threads with mask filters
+    - {2:1} with mask filters
         # {0:1} {1:1} -g "*" -q INCFILTER:0xf
         # {0:1} {1:1} -g "*" -q EXFILTER:0x4
         # {0:1} {1:1} -g "*" -q SAMEFILTER:0xff
         # {0:1} {1:1} -g "*" -q DIFFFILTER:0xff
                     """.format(
-                        cmd, mode
+                        cmd, mode, "Print CPU affinity of specific threads"
                     )
 
                 # setaffinity #
                 elif SysMgr.checkMode("setafnt"):
+                    desc = "Set CPU affinity of a specific thread"
                     helpStr = """
 Usage:
     # {0:1} {1:1} -g <TID|COMM:MASK> [OPTIONS] [--help]
 
 Description:
-    Set CPU affinity of specific threads
+    {2:1}
 
 Options:
     -g  <TID|COMM:MASK>         set values
@@ -46256,7 +46256,7 @@ def _getDesc(s, t=0):
     -q  <NAME{{:VALUE}}>          set environment variables
     -v                          verbose
                         """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                     helpStr += """
@@ -46286,7 +46286,7 @@ def _getDesc(s, t=0):
                     """.format(
                         cmd,
                         mode,
-                        "Set CPU affinity of a specific thread",
+                        desc,
                         '"PID:0x3" -q TASKMON',
                     )
 
@@ -46553,7 +46553,7 @@ def _getDesc(s, t=0):
                 # flush #
                 elif SysMgr.checkMode("flush"):
                     helpStr = (
-                        _getDesc("Flush specific file pages on memory")
+                        _getDesc("Flush file pages on memory")
                         + """
 Options:
     -i  <SEC>                   set interval
@@ -46596,7 +46596,7 @@ def _getDesc(s, t=0):
 
                     helpStr += """
 Examples:
-    - Commit system filesystem caches to disk
+    - Commit filesystem caches on system to disk
         # {0:1} {1:1}
 
     - Commit filesystem caches of specific files to disk
@@ -46841,12 +46841,13 @@ def _getDesc(s, t=0):
 
                 # send #
                 elif SysMgr.checkMode("send"):
+                    desc = "Send a UDP message"
                     helpStr = """
 Usage:
     # {0:1} {1:1} <MESSAGE> [OPTIONS] [--help]
 
 Description:
-    Send a UDP message
+    {2:1}
 
 Options:
     -x  <IP:PORT>               set local address
@@ -46855,18 +46856,18 @@ def _getDesc(s, t=0):
     -q  <NAME{{:VALUE}}>          set environment variables
     -v                          verbose
                         """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                     helpStr += """
 Examples:
-    - Send a UDP message
+    - {2:1}
         # {0:1} {1:1} OK -X 192.168.100.100:12345
 
-    - Send a UDP message 5 times
+    - {2:1} 5 times
         # {0:1} {1:1} OK -X 192.168.100.100:12345 -R 5
                     """.format(
-                        cmd, mode
+                        cmd, mode, desc
                     )
 
                 # client #
@@ -60743,7 +60744,7 @@ def _getSym(call):
                 elif context == "callchain":
                     k, v = l.split(":", 1)
                     k = k.strip()
-                    call[k] = v.strip("[]") if k == "file" else v.strip()
+                    call[k] = v.strip(" []\n") if k == "file" else v.strip()
 
                     # save call sample #
                     if k != "symbol":
@@ -75465,10 +75466,7 @@ def _allocMemory(size, wrPipe=None, ret=False):
             # allocate memory #
             try:
                 if "RAND" in SysMgr.environList:
-                    chunk = bytearray(
-                        SysMgr.getPkg("random").getrandbits(8)
-                        for _ in range(size)
-                    )
+                    chunk = bytearray(os.urandom(size))
                 else:
                     chunk = bytearray(size)