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bashprefixstrip

Strip prefix from variable - bash

Adding a shell script (/bin/bash) to an automator workflow (copy file path) I want to use this to strip the constant prefix '/Volumes/' from the variable path which is being copied to the clipboard.

EG The copy file path workflow copies '/Volumes/GRAID/audiovideo.mov' to the clipboard, the path I desire to paste is 'GRAID/audiovideo.mov'

Solution

  • To remove a known constant prefix /Volumes/ from a shell variable named foo, you can write:

    foo="${foo#/Volumes/}"

    (See the Bash Reference Manual, §3.5.3 "Shell Parameter Expansion".)