Editing Linux 101 hacks (section)

=='''Hack 35. Display current time in the prompt'''==


In the PS1 environment variable, you can directly execute any Linux command, by specifying in the format $(linux_command). In the following example, the command $(date) is executed to display the current time inside the prompt.


ramesh@dev-db ~> '''export PS1="\u@\h <nowiki>[\$(date</nowiki>'''


'''+%k:%m:%S)]> "'''


ramesh@dev-db <nowiki>[11:09:56]></nowiki>


You can also use \t to display the current time in the hh:mm:ss format as shown below:


ramesh@dev-db ~> '''export PS1="\u@\h <nowiki>[\t]> </nowiki>"'''


ramesh@dev-db <nowiki>[12:42:55]></nowiki>


You can also use \@ to display the current time in 12-hour am/pm format as shown below:


ramesh@dev-db ~> '''export <nowiki>PS1="[\@] </nowiki>\u@\h> "'''


<nowiki>[04:12 </nowiki>PM] ramesh@dev-db>