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Convert spaces to tabs. More information:

  • Convert blanks in each file to tabs, writing to stdout:

unexpand {{path/to/file}}

  • Convert blanks to tabs, reading from stdout:


  • Convert all blanks, instead of just initial blanks:

unexpand -a {{path/to/file}}

  • Convert only leading sequences of blanks (overrides -a):

unexpand --first-only {{path/to/file}}

  • Have tabs a certain number of characters apart, not 8 (enables -a):

unexpand -t {{number}} {{path/to/file}}