How to remove a single command from TCSH history?

Question

I'm trying to remove a single command from TCSH history on RHEL 6, but couldn't find a way. I tried out the following Bash command as in [1], it didn't work.

history -d <line_number>

How can I achieve this?

dang you tcsh and csh. a thousand curses upon thee. – Trevor Boyd Smith Mar 24 '20 at 17:36 — Trevor Boyd Smith, Mar 24 '20 at 17:36

score 9 · Accepted Answer · edited Jun 20 '18 at 18:42

9

I don't use tcsh, but perusing the man page suggests:

save current history with history -S
edit the history file to remove the offending command with vi ~/.history (or vi $histfile, if you've overridden the default).
clear history with history -c
load revised history with history -L

Read your tcsh man page for the various details.

edited Jun 20 '18 at 18:42

Jeff Schaller

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answered Jun 20 '18 at 17:40

glenn jackman

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I opened a tcsh shell to test these commands; they worked as advertised.
101 14:40 history -L 102 14:39 echo command here 104 14:39 history -S -- where I manually edited out command #103 from ~/.history. – Jeff Schaller Jun 20 '18 at 18:43
Those commands worked for me, I'm accepting your answer. – Jun 21 '18 at 08:16

How to remove a single command from TCSH history?

1 Answers1