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JoshCheek/f.sh

Last active June 16, 2017 04:05
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Options which aren't valid one-letter flags for ls
Raw
f.sh
#!/usr/bin/env bash
man ls | col -b | ruby -ane '
BEGIN { valid = [] }
END { puts [*?a..?z, *?A..?Z, *?0..?9] - valid }
$F[0] =~ /^-(\S)$/ && valid << $1
'
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