Busk at 21:39, 30 August 2022

2022-08-30T21:39:58Z

Busk: Created page with "https://stackoverflow.com/questions/6109225/echoing-the-last-command-run-in-bash"

2022-08-30T21:39:41Z

Created page with "https://stackoverflow.com/questions/6109225/echoing-the-last-command-run-in-bash"

New page

https://stackoverflow.com/questions/6109225/echoing-the-last-command-run-in-bash

← Older revision		Revision as of 21:39, 30 August 2022
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	https://stackoverflow.com/questions/6109225/echoing-the-last-command-run-in-bash		https://stackoverflow.com/questions/6109225/echoing-the-last-command-run-in-bash
		+	```
		+	Bash has built in features to access the last command executed. But that's the last whole command (e.g. the whole case command), not individual simple commands like you originally requested.
		+
		+	!:0 = the name of command executed.
		+
		+	!:1 = the first parameter of the previous command
		+
		+	!:4 = the fourth parameter of the previous command
		+
		+	!:* = all of the parameters of the previous command
		+
		+	!^ = the first parameter of the previous command (same as !:1)
		+
		+	!$ = the final parameter of the previous command
		+
		+	!:-3 = all parameters in range 0-3 (inclusive)
		+
		+	!:2-5 = all parameters in range 2-5 (inclusive)
		+
		+	!! = the previous command line
		+
		+	etc.
		+
		+	So, the simplest answer to the question is, in fact:
		+
		+	echo !!
		+	...alternatively:
		+
		+	echo "Last command run was ["!:0"] with arguments ["!:*"]"
		+	Try it yourself!
		+
		+	echo this is a test
		+	echo !!
		+	In a script, history expansion is turned off by default, you need to enable it with
		+
		+	set -o history -o histexpand
		+	```