sed — Edit text in a scriptable manner. See also: `awk`, `ed`.
# source: tldr · verified

Examples:
  # substitute all occurrences of "apple" with "mango" on all lines, print to `stdout` [GNU]
    $ command | sed 's/apple/mango/g'
  # Replace "apple" with "mango" in-place in a file (overwriting original file) [GNU]
    $ sed [-i|--in-place] 's/apple/mango/g' path/to/file
  # Run multiple substitutions in one command [GNU]
    $ command | sed -e 's/apple/mango/g' -e 's/orange/lime/g'

Advanced recipes:
  ⚠ $ sed -i.bak 's/localhost/127.0.0.1/g' config.ini
      # Replace every occurrence of localhost with 127.0.0.1 in config.ini, editing the file in place. `-i.bak` writes the edit in place but first saves the original as config.ini.bak. DESTRUCTIVE: `-i` rewrites the file; the `.bak` suffix is your undo path (plain `-i` with no suffix leaves no backup). [advanced]

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