CODEWITHSUNDEEP
bashemacselisp
kuanyui
kuanyui

Reputation: 781

How to pipe content in Emacs' buffer to external program, and print the result?

How to pipe the selected content in Emacs' buffer to external bash script and then print its output? The script can read data from pipe.

Upvotes: 13

Views: 3608

Answers (1)

phils
phils

Reputation: 73274

Use shell-command-on-region which is bound to M-|

e.g.:
M-| sort | uniq -c RET

With a prefix argument, the region is replaced by the output of the shell command (which effectively adds all shell commands to Emacs' editing toolkit; very useful when you know how to do something outside of Emacs, but don't know an equivalent native function).

C-uM-| sort | uniq -c RET

Upvotes: 18

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