Check if a file is text

grep -qIm1 . $file
This command produces no output, but its exit status is 0 ("true") if $file is text, non-0 ("false") if $file is binary (or is not accessible). Explanation: -q suppresses all the output of grep -I is the trick: if a binary file is found, it is considered a non-match -m 1: limit "output" to first match (speed up for big files) .: the match string, "." stands for any character Usage: e.g. run editor only on text files grep -qIm 1 . $file && vi $file

By: anon1251
2013-03-28 14:11:51

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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