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Shell tricks

History, aliases, brace expansion, and shortcuts that save keystrokes.

002

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all 002 process-substitution 001 diff 001 comm 001 type 001 aliases 001 debugging 001

015Compare the output of two commands without writing a temp filediff <(sort packages-web01.txt) <(sort packages-web02.txt)2026-09-034 min 011Find out what a command actually is before you run ittype -a grep2026-08-283 min

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