commandlinefu.com is the place to record those command-line gems that you return to again and again.
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This can be particularly useful used in conjunction with a following cut command like
echo "hello::::there" | tr -s ':' | cut -d':' -f2
which prints 'there'. Much easier that guessing at -f values for cut. I know 'tr -s' is used in lots of commands here already but I just figured out the -s flag and thought it deserved to be highlighted :)
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