Resolve compatibility issues

[Demired]

top -b -n 1 | grep Cpu | awk -F ":" '{print $2}'

在一些场景中，会得到这样的结果

[root@myserver ~]# top -b -n 1 | grep Cpu | awk -F ":" '{print $2}'
 16.1 us,  2.0 sy,  0.0 ni, 80.2 id,  0.0 wa,  0.2 hi,  1.5 si,  0.0 st
00.00 grep --color=auto Cpu

而非预想的

[root@tuo-3-201 ~]# top -b -n 1 | grep Cpu | awk -F ":" '{print $2}'
 16.1 us,  2.0 sy,  0.0 ni, 80.2 id,  0.0 wa,  0.2 hi,  1.5 si,  0.0 st

如果使用

top -b -n 1 | grep [C]pu | awk -F ":" '{print $2}'

就能完美解决

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.36%. Comparing base (eef3a25) to head (70f1f54).
Report is 107 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #627      +/-   ##
==========================================
- Coverage   98.80%   89.36%   -9.44%     
==========================================
  Files          85       93       +8     
  Lines        5867     6547     +680     
==========================================
+ Hits         5797     5851      +54     
- Misses         51      667     +616     
- Partials       19       29      +10     

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[suchen-sci]

Hi,

Thanks for your contribution. But it seems top -b -n 1 | grep [C]pu | awk -F ":" '{print $2}' does not work in zsh, please update it to top -b -n 1 | grep "[C]pu" | awk -F ":" '{print $2}'.