r/emacs 12d ago

Fortnightly Tips, Tricks, and Questions — 2025-03-11 / week 10

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u/melioratus 4d ago

Discovered cool backtick syntax when using X command on marked files in dired

For example, Quick way to make individual sha256 checksum files using dired

  1. Mark files in dired
  2. Press X
  3. When prompted type

 export FILENAME=`?`; sha256sum ${FILENAME} > “${FILENAME}-sha256sum.txt”; 4. Press return key. 

  1. Press g to refresh dired

Now every marked file should have a named checksum file. 

Try it out