/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

0 vote182 views1 answer
No_pubkey
Shell/Bash
4 votes177 views1 answer
Hash bang bash
Shell/Bash
8 votes211 views1 answer
File search linux by text
Shell/Bash
0 vote188 views1 answer
How to ls git branch
Shell/Bash
0 vote203 views1 answer
Powershell hidden window
Shell/Bash
0 vote186 views1 answer
Linux write
Shell/Bash
0 vote220 views1 answer
How to make maven clean install faster in eclipse
Shell/Bash
1 vote286 views3 answers
Ubuntu 20.10 how to open zip file
Shell/Bash
5 votes304 views4 answers
How to push code to gitlab
Shell/Bash
0 vote277 views1 answer
Boucle bash
Shell/Bash