使用正則表達式在文件中查找字符串。 更多資訊:https://www.gnu.org/software/grep/manual/grep.html.
grep "{{字符串}}" {{檔案/完整/路徑}}
grep {{-F|--fixed-strings}} "{{精確字符串}}" {{檔案/完整/路徑}}
grep {{-r|--recursive}} {{-n|--line-number}} --binary-files {{without-match}} "{{字符串}}" {{檔案/完整/路徑}}
?
, +
, {}
, ()
, 和 |
),並啟用不區分大小寫的模式:grep {{-E|--extended-regexp}} {{-i|--ignore-case}} "{{字符串}}" {{檔案/完整/路徑}}
grep --{{context|before-context|after-context}} 3 "{{字符串}}" {{檔案/完整/路徑}}
grep {{-H|--with-filename}} {{-n|--line-number}} --color=always "{{字符串}}" {{檔案/完整/路徑}}
grep {{-o|--only-matching}} "{{字符串}}" {{檔案/完整/路徑}}
cat {{檔案/完整/路徑}} | grep {{-v|--invert-match}} "{{字符串}}"