history clearance for a particular history number in linux

sangupari · 03-02-2010, 06:32 AM

hi
history -c will clear the previous history.
~.bash_history will contain the history commands
I want to know how to delete the particular history using the history number.
For eg:
.
.
.
440 cd
441 ls
442 history

then to delete the 440 th history how can i do it from the command line

neonsignal · 03-02-2010, 06:53 AM

You can use the '-d' flag

Code:

history -d 440

sangupari · 03-03-2010, 02:57 AM

thnx neon
how to delete a specific range of history?

from 440 to 442
the history has to be deleted...how to do that?

neonsignal · 03-03-2010, 03:08 AM

Quote:

from 440 to 442
the history has to be deleted...how to do that?

Code:

for i in {442..440}; do history -d $i; done

(note that the deletion is done in reverse)