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Where can I find the history of Bash?
They will also not be written if you kill the shell process. Therefore, the command history (2000 last commands) can also be found at ~/.bash_history, by either:
How to print the history of a command in Bash?
How To Use Bash History – Command Examples. 1. Print History In its most simple form, you can run the ‘history’ command by itself and it will simply print out the bash history of the current user to the screen. Commands are numbered, with older commands at the top and newer commands at the bottom.
How do I scroll through my Bash history?
Scrolling through Bash History There are a few ways that we can scroll through our bash history, putting each successive command on the command line to edit. The most common way of doing this is to press the up arrow key at the command prompt. Each additional press of the up arrow key will take you further back in your command line history.
How to find old command in shell history?
The most simple one is to just hit the ↑ key and cycle through your command history line by line until you spot what you looked for. You can also press Ctrl + R to enter the so-called (reverse-i-search) mode.
But the moment it’s written to the file system, the information from which session the command originated is lost. Then you can see the commands from all shells in near real-time in .bash_history.
How is the history of Bash saved in memory?
The history is kept in memory and not available for other processes until it is saved to .bash_history in the same session using history -a or history -w. But the moment it’s written to the file system, the information from which session the command originated is lost.
How to access the history of a specific session?
To access the history for a specific session you need to interrupt the foreground process in that session using e.g. Ctrl+Z. Here is how with gdb (you’ll need to run it with administrative permissions), via https://stackoverflow.com/questions/7272558/can-we-define-a-new-data-type-in-a-gdb-session :
Where do I find the history command in Linux?
The command appears on the command line, and you can edit it. You can use other Linux tools to search the history list. For example, to pipe the output from history into grep and search for commands that contain the string “aliases” you could use this command: history | grep aliases.
How to repeat a command from the history list?
Repeating Commands 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