Linuxexit code > 0

grep: Is a directory

$grep: my_folder: Is a directory

Analysis

You asked grep to search a directory without telling it to be recursive.

Common Triggers

  • Running grep pattern folder.

Debug Checks

  • $Check if the target is a file or folder.

Resolution

1
Use recursive flag: grep -r pattern folder.
2
Specify a file pattern: grep pattern folder/*.