$ echo this goes to history this goes to history $ echo this wont go to history this wont go to history $ history 1 echo this goes to history 2 history
Sometimes you don't want to leave history, because of passwords use or somethink like. I think it help.
wget --user=username --password="$password" http://example.org/
Instead of hiding commands entirely from history, I prefer to use "read" to put the password into a variable, and then use that variable in the commands instead of the password. Without the "-e" and "-s" it should work in any bourne-type shell, but the -s is what makes sure the password doesn't get echoed to the screen at all. (-e makes editing work a bit better)
<space>secret_command;export HISTCONTROL=
This will make "secret_command" not appear in "history" list.
Put a space in front of your command on the command line and it will not be logged as part of your command line history. Show Sample Output
Yes, by correctly setting the HIST* variables you can make certain commands not saved in history. But that's complicated and easy to make a mistake. If you set HISTFILE= to blank, nothing in your current shell session will be saved in history. Although this is not a precise answer to the subject, but it's very simple.
Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?
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kill -9 $$
echo export HISTIGNORE="[ \t]*" >> .bashrc
will appear in the history :) You should do<space> history -d N
Where N is the postion export HISTIGNORE="[ \t]*"