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.
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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