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Count number of lines in a git repository

However would I number the entire figure of strains immediate successful each the information successful a git repository git lsrecordsdata offers maine a

Extract substring in Bash

Fixed a filename successful the signifier someletters12345moreletersext I privation to extract the 5 digits and option them into a adaptable Truthful to stress

What does 21 mean

To harvester stderr and stdout into the stdout watercourse we append this to a bid 2gtamp1 For illustration the pursuing bid exhibits the archetypal fewer