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Why this exists Automation is repetition: every server, every file, every line of a list. Bash has the loops for it, plus arrays to hold lists and functions to avoid copy pasting. A few habits (quoting array expansions,…
Shell Basics: Loops, Arrays and Functions
for, while and until loops, reading a file line by line safely, Bash arrays and associative arrays, and functions with local variables. Includes why you should never loop over the output of ls.
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