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My history is 'polluted' with some specific lines that have typo's and such. For example: I often have to ssh to a certain server like so:

ssh foo-bar@domain.tld
> Connects succesfully

But I also make a typo sometimes:

ssh bar-foo@domain.tld
> Permission denied

Because I rely on history this typo is duplicated multiple times:

cat .zsh_history | grep bar-foo@domain.tld
> : 1510301683:0;ssh bar-foo@domain.tld
> : 1511166682:0;ssh bar-foo@domain.tld
> : 1511193552:0;ssh bar-foo@domain.tld
> : 1512730972:0;ssh bar-foo@domain.tld
> : 1516368993:0;ssh bar-foo@domain.tld
> : 1516802690:0;ssh bar-foo@domain.tld
> : 1519633368:0;ssh bar-foo@domain.tld

Is there an easy way to clean up my history purely by the results of the grep-command? (or perhaps there's some other, more clever solution?)

Update:

Please note: I am not looking for a way to delete line x from the history; I know there are plenty of articles out there that cover that. I'm simply looking for a (simple?) way to delete all lines that contain string y.

  • Possible duplicate of Remove a certain line from Bash history file – agc Apr 24 '18 at 7:26
  • Not sure if it's a duplicate. I just want to clean my history by deleting all lines that contain string x. The linked question is how to delete by line numbers. – Giel Berkers Apr 24 '18 at 8:33
  • You might be interested in zsh's option HIST_IGNORE_ALL_DUPS in order to not stor duplicates in your history at all: If a new command line being added to the history list duplicates an older one, the older command is removed from the list (even if it is not the previous event). – mpy Apr 24 '18 at 16:36
  • @GielBerkers, Remove a certain line from Bash history file seems quite general, with answers using various methods. The simplest grep fix is in a comment by *mivk, which prints out the needed commands, (without actually running them): history | grep XYZ | grep -v grep | tac | awk '{print "history -d", $1}' – agc Apr 25 '18 at 0:59
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You can use this command to delete properly all lines with the string in the history :

sed -i '/string/d' .bash_history

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