Unix » shell scripts for sh, bash, tcsh, zsh, etc.

This repo has lots of Unix shell scripts that are utilities.

Command line boosters

awk

• awk-remove-dupe-lines: Remove duplicate lines in a file without sorting.

sed

• sed-char-to-html-entity-name: sed script to change all non-HTML characters to their HTML entity names.
• sed-delete-blank-lines: Delete all blank lines, i.e. lines with no characters.
• sed-delete-duplicate-consecutive-lines: Delete duplicate, consecutive lines from a file (emulates "uniq").
• sed-delete-duplicate-nonconsecutive-lines: Delete duplicate, nonconsecutive lines from a file.
• sed-delete-leading-and-trailing-whitespace: Delete leading and trailing whitespace (spaces and tabs).
• sed-delete-leading-blank-lines: Delete all leading blank lines at top of file.
• sed-delete-leading-whitespace: Delete leading whitespace (spaces and tabs).
• sed-delete-most-html-tags: Delete most HTML tags (accommodates multiple-line tags)
• sed-delete-newlines: Use sed to delete all the newlines except the last one, which we want for normal output.
• sed-delete-trailing-blank-lines: Delete all trailing blank lines.
• sed-delete-trailing-whitespace: Delete trailing whitespace (spaces and tabs).
• sed-extract-version: sed script to print the VERSION string from a text file.
• sed-join-equal-sign-lines: sed script to join lines that end with equal signs.
• sed-simple-quotes-and-dashes: Change smart characters into simple characters.
• sed-uncolor: sed script to uncolor lines by removing ascii color characters.

directory

• dir-is-empty: Detect if a directory is empty or not.

file

File scripts to print a given ls field:

• file-permissions
• file-link-count
• file-user-name
• file-user-number
• file-group-name
• file-group-number
• file-size

find

• find-broken-symlinks: Find broken symlinks.
• find-empty-directories: Find empty directories.
• find-fast: Find script with pruning of /dev, /proc, /tmp, .git, .svn, etc .
• find-file-size: Print each file's size and name.
• find-file-size-sort: Print each file's size and name, with sort by size.
• find-git-repos: Find git repostitory directories.
• find-git-repos-fast: Find git repostitory directories by using faster functions.

date

• date-stamp: Print the current date stamp UTC in a user-friendly format.
• date-stamp-shortest: Print the current date stamp UTC in the shortest format.

history

• history-count-commands: Count your history commands.
• history-rank: List your most-frequent history commands.
• history-clear: Clear the history in bash and zsh.

grep

• grep-medium-words: Grep for typical words, length 4-7 characters, all lowercase, a-z.
• grep-v-web-bots: grep without web robot strings like robots.txt, Googlebot, Mouseflow, etc.
• grep-v-web-chaff: grep without web chaff like lines that have .css, .js, .png.

lsof

• lsof-i-established: Show current active connections i.e. that say "ESTABLISHED".
• lsof-i-listen: Show current listening connections i.e. that say "LISTEN".
• lsof-link-count-less-than-1: Shows you all open files that have a link count less than 1.

dig

• dig-soa: Dig a domain's start of authority nameserver.
• dig-subdomains: Dig a domain's subdomains

gpg

• gpg-decrypt: GPG script to decrypt a file with our typical settings.
• gpg-encrypt: GPG script to encrypt a file with our typical settings.

uri & url

• uri-escape: URI script to escape text, for example a CGI query string.
• uri-unescape: URI script to unescape text, for example a CGI query string.
• uri-scheme: Parse a URI to its fields, for example host, query, fragment.
• uri-relate: Combine a base URI and relative URI to an absolute URI.

path

• addpath: Add path(s) to the PATH environment variable
• rmpath: Remove path(s) from the PATH environment variable.

wc

• wc-all-files-in-directory: Count the lines in all the files in a directory.
• wc-l: Print the number of lines of a file.

random passwords

• random-password-encrypt: Generate a random password and encrypt it.

processes

• kill-with-user: Kill a process with a given user.
• kill-all-zombie-parents: Kill all processes that are parents of zombies.
• ps-top-mem: Print the processes that are using the most RAM.
• shell-command: Print the current running shell command e.g. '/bin/bash'.

copying

• cp-progress: Copy files using a command-line progress bar.

networking

• infiltrated-blacklisted: Block known dirty hosts from reaching your machine.
• my-ip: Print this system's IP address via whatismyip.org
• netstat-listening-easy: Shorthand to use netstat to listen and print our typical output.
• nmap-probe: Get info about remote host ports and OS detection.

scripting

• cddo: Run a command in each directory.
• command-is-installed: If a given command installed, then return true.
• keep: Keep running a command every time any file it looks at is changed.
• no: Shorthand to always return "n"
• while-read-do-cd: For each line of input on command line, cd into a path then run a command.

compression

• extract: Extract a file using best-guess of tar, bzip, rar, gz, zip, etc.
• tar-bzip2: Run tar using bzip2 compression.

text

• between: between: print the lines of a file that are between match $1 and match $2.
• camelize: Convert text to camel-case like FooGooHoo.
• diff-sort: Shorthand to diff with sort.
• file-encode-utf-8: Convert encoding of a file to unix utf-8.
• file-line-num: Print a file's line at a given line number.
• json-to-xml: json-to-xml is a pipe command to convert
• h1-links: Convert the first <h1> link in a stream to an HTML list item.
• summary-line: Summarize a text file in one line.

text replacement

• uuid-line-fill: uuid-filler reads input lines and fills in secure random UUIDs.
• version-file-text-changer: Search-and-replace the VERSION number in a text file.

text sets

• union: set "union" of the inputs' lines.
• intersect: set "intersect" of the inputs' lines.
• except: set "except" of the inputs' lines a.k.a. set (A - B).
• extra: set "extra" of the inputs' lines, a.k.a. set (B - A).

media

• ffmpeg-x11-screencast: Record a screencast and convert it to an mpeg movie.
• flac-to-ogg: Convert sound files from FLAC format to Ogg format.
• gs-combine-pdf: Ghostscript: combine multiple PDFs into one readable, searchable, PDF
• mount-iso: Mount a .iso file.

fonts

• font-file-to-family: Parse a font file to the preferred family string.
• font-file-to-full-name: Parse a font file to the full name string.
• font-unzip: Unzip a font zip file and move fonts to a family directory

sysadmin

• ls-tree: List files in your current directory recursively shown as a tree.
• mkcd: Make a directory with 'mkdir' then change into it with 'cd'.
• os-version-info: Show operating system version information.
• reboot-kernel: Quickly (soft-)reboot skipping hardware checks.
• screenrc: Keybindings.
• sort-rank: Sort command-line input by rank.
• susu: Shorthand for: sudo su -

bash

• bind-list-functions-and-bindings: List Bash bind keyboard shortcuts.
• stty-list-functions-and-bindings: List Bash stty keyboard shortcuts.

OS X

• brew-cask-repair: Repair Homebrew manager on OSX.

Specific needs

Applications

• gimp-2.7.1: Launch GIMP 2.7.1 from our /opt directory with our library path settings.
• gmail: Check your unread gmail from the command line.
• gravatar: Gravatar: generate a gravatar URI for a given email address.
• spam: Move spam email messages out of my inbox folder and into my spam folder.

Images

• convert-ico-to-png: Convert an ICO image file to a PNG image file.
• [glue-sprites: Use the glue](glue-sprites: Use the glue) command to compress a directory of images to sprites.

Favicon

• favicon-fetch: Download a web page's favicon.
• html-to-favicon-url: Parse HTML to extract the favicon URL.

Location

• geocode-address-to-lat-lng: Geocode an addres to a latitude and longitide.

Ubuntu

• empty-trash: Empty the trash on an Ubuntu system.

FTP, ProFTPD, and xferlog

• proftpd-stats-date-summary-of-login-success: Count successful logins per date.
• xferlog-stats-count: Count FTP transfer log items per date, with options for filtering.
• xferlog-stats-date-summary: Print statistics with date summary information.

SixArm Setup

• openssl-req-new-key-pem-for-sixarm: OpenSSL script to generate a new key file for SixArm.com
• sixarm-setup-glassfish: How to download and install Glassfish version 3 with typical settings.
• sixarm-setup-server: Fresh unix install for a typical sixarm server.

Ruby

Ruby administration

• ruby-remove: This script will remove all ruby-related files that we know about. DANGEROUS!
• ruby-versioner: Set the Ruby environment to be a particular version of Ruby.

Ruby gem

• gem-paths: Prints your gem paths by calling "gem env" then matching
• gem-test: Gem script to run all the test files.
• gem-update: Run gem update, install, tumble, and set up our typical gem sources.
• gem-fixer: Advises if any gems need fixing or updates. [Deprecated]

Ruby managers

• ruby-build-install: Install ruby-build where we want it.
• ruby-build-update: Use ruby-build to update Ruby in our preferred locations.
• ruby-install-install: Install `ruby-install`` where we want it.

Ruby testing and documentating

• rcov-easy: Run rcov on our typical test files.
• ruby-header-comments-to-rdoc: For each input file name, get the header comments and emit rdoc format.
• ruby-metaprogramming-metric: How many metaprogramming methods are in your Ruby code?
• yardoc-easy: Run yardoc on all our lib files.

Rails

• rails-deploy: Rails script to do a simple deployment from the command line.
• rails-metaprogramming-metric: How many meta-programming methods are in your Rails project?
• rails-script-server: rails-script-server - A better script/server alias.
• rails-script-server-colorizer: Colorize our rails server output.
• rails-test-unit: Run our typical test files
• rails-word-count: Shows the word count of each file in a Rails app subdirectory.
• rails_root_vendor_plugins: Print a list of the Rails plugins in ./vendor/plugins

Amazon Web Services

• aws-pem-file-to-fingerprint: Given a AWS PEM key pair file, print the fingerprint.