Preface
One of the fancy feature of Bash is the command history. History will store all the command run by the User, which will be in /home/$USER/.bash_history. This will help the user to edit / reclass previously applied commands. To get a command previous run in command you can use UP arrow or DOWN arrow keys.
History
288 cd layouts/
289 ls
290 cd ..
291 ls
292 cd ..
293 ls
294 tar -zcvf views.tar.gz views/
295 ls
296 cd public/
297 ls
298 cd ..
299 ls
300 scp views.tar.gz ubuntu@192.168.1.2:/home/ubuntu/
301 cd ..
302 ls
303 tar -zcvf openKB.tar.gz openKB/
304 ls
305 rm -rf openKB.tar.gz
306 pm2 list
Using !
For example if you want to run the 306 line, enter this command
!306
Output
ubuntu@personal-knowledgebase:~$ !306
pm2 list
┌──────────┬────┬──────┬──────┬────────┬─────────┬────────┬─────┬────────────┬────────┬──────────┐
│ App name │ id │ mode │ pid │ status │ restart │ uptime │ cpu │ mem │ user │ watching │
├──────────┼────┼──────┼──────┼────────┼─────────┼────────┼─────┼────────────┼────────┼──────────┤
│ app │ 0 │ fork │ 4457 │ online │ 0 │ 37D │ 0% │ 992.2 MB │ ubuntu │ disabled │
└──────────┴────┴──────┴──────┴────────┴─────────┴────────┴─────┴────────────┴────────┴──────────┘
Use `pm2 show <id|name>` to get more details about an app
ubuntu@bluvalt-knowledgebase:~$
Using part of Command
Also, you can use the partial of the Command as well.
!pm2
Output will be Same
ubuntu@personal-knowledgebase:~$ !pm2
pm2 list
┌──────────┬────┬──────┬──────┬────────┬─────────┬────────┬─────┬────────────┬────────┬──────────┐
│ App name │ id │ mode │ pid │ status │ restart │ uptime │ cpu │ mem │ user │ watching │
├──────────┼────┼──────┼──────┼────────┼─────────┼────────┼─────┼────────────┼────────┼──────────┤
│ app │ 0 │ fork │ 4457 │ online │ 0 │ 37D │ 0% │ 995.2 MB │ ubuntu │ disabled │
└──────────┴────┴──────┴──────┴────────┴─────────┴────────┴─────┴────────────┴────────┴──────────┘
Use `pm2 show <id|name>` to get more details about an app
ubuntu@personal-knowledgebase:~$