/Shell/Bash/Bash check if string does not exist in file

Bash check if string does not exist in file

Just use grep with flags 'F' (fixed string), 'x' (exact match) and 'q'
(quiet output) in order to check if a word string is in a file
if ! grep -Fxq "string" file.txt; then #do some code...#; fi

Similar codes

2 votes140 views1 answer
Install / Update Dbeaver Community on Ubuntu
Shell/Bash
21 votes130 views4 answers
Git clone submodule
Shell/Bash
0 vote146 views2 answers
Stop nginx mac
Shell/Bash
10 votes152 views3 answers
Add vscode to path mac
Shell/Bash
1 vote142 views1 answer
Error: Cannot find module '@truffle/hdwallet-provider'
Shell/Bash
122 votes134 views6 answers
Git create a new repository
Shell/Bash
9 votes144 views1 answer
How to check ram from cli
Shell/Bash
0 vote139 views1 answer
"serverless-prune-plugin" not found.
Shell/Bash
69 votes154 views6 answers
React icon
Shell/Bash
7 votes137 views3 answers
Take ownership directory linux
Shell/Bash