Is it possible to remove bash history? What command I need to type delete all history when using bash on Linux system?
Yes, you can clear the history list by deleting all of the entries. We use the following command:
history -c && history -w
In other worlds we passed the following options:
-c: Remove history file
-w: write the current history to the history file (like flush)
How to effectively clear your bash history daily
We use the following commands too:
cat /dev/null > ~/.bash_history
Another option is to combine it as follows so that nothing is stored:
cat /dev/null > ~/.bash_history && history -c && exit
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Very useful. i just figured out how to get help too:
Then I saw complete help for the history. You know
man bash is to big to read on screen
history: history [-c] [-d offset] [n] or history -anrw [filename] or history -ps arg [arg...] Display or manipulate the history list. Display the history list with line numbers, prefixing each modified entry with a `*'. An argument of N lists only the last N entries. Options: -c clear the history list by deleting all of the entries -d offset delete the history entry at position OFFSET. Negative offsets count back from the end of the history list -a append history lines from this session to the history file -n read all history lines not already read from the history file and append them to the history list -r read the history file and append the contents to the history list -w write the current history to the history file -p perform history expansion on each ARG and display the result without storing it in the history list -s append the ARGs to the history list as a single entry If FILENAME is given, it is used as the history file. Otherwise, if HISTFILE has a value, that is used, else ~/.bash_history. If the HISTTIMEFORMAT variable is set and not null, its value is used as a format string for strftime(3) to print the time stamp associated with each displayed history entry. No time stamps are printed otherwise. Exit Status: Returns success unless an invalid option is given or an error occurs.