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How do I delete a specific command from my history?
Removing history There may come a time that you want to remove some or all the commands in your history file. If you want to delete a particular command, enter history -d . To clear the entire contents of the history file, execute history -c .
How do I limit history in Linux?
history. How much command history is preserved is limited by the HISTSIZE setting if one has been set (usually the case). Most accounts are set up to record 100, 500 or 1,000 commands, and the older commands are overwritten by newer ones when that limit is exceeded.
How do I turn off shell command?
When you press CTRL-C the current running command or process get Interrupt/kill (SIGINT) signal. This signal means just terminate the process. Most commands/process will honor the SIGINT signal but some may ignore it. You can press Ctrl-D to close the bash shell or open files when using cat command.
How do you show all command history in Linux?
In Linux, there is a very useful command to show you all of the last commands that have been recently used. The command is simply called history, but can also be accessed by looking at your . bash_history in your home folder. By default, the history command will show you the last five hundred commands you have entered.
Where is the history of a command stored in Bash?
By default, history is stored in ~/.bash_history file. However, the bash variable named $HISTFILE defines the file’s name in which command history is saved. If unset, the command history is not saved when a shell exits.
How to reuse a command from the history list?
If you want to reuse a command from the history list, type an exclamation point (!), and the number of the command with no spaces in-between. For example, to repeat command number 37, you would type this command: !37
How can I see the last 10 commands in history?
To see a certain number of commands, you can pass a number to history on the command line. For example, to see the last 10 commands you’ve used, type the following: history 10. You can achieve the same result if you pipe history through the tail command. To do so, type the following: history | tail -n 10.
Is there a way to Kill Bash shell without saving anything?
I know that is not as best as the previous answers, but this will kill the current Bash shell without saving anything, useful when HISTCONTROL is not set by default, you forgot to set it, or pure and simple you forgot to put a leading space and you just typed in some passwords and don’t want them to remain permanently in history.