File module: Row exists

Check if a given row exists or not in a file

Example

Check a given text input exists inside a file:

space -m file /rowexist/ -- "Text data" "/home/user/temporary_files/some_file.txt"

Conversely, it is possible to check the same text is not present in the same file with:

space -m file /rowexist/ -- "Text data" "/home/user/temporary_files/some_file.txt" "0"

Exit status code is expected to be 0 on success.

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