I was wondering if there is any name to the leftmost text (after which we type the command) in a Linux terminal.
Like
ubuntu@Ubuntu:~$
Do we have a name for this?
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2This is just called prompt normally– xjiNov 7, 2016 at 20:47
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2 Answers
It's called the primary prompt string, set by the shell according to the PS1 environment variable. This is usually set per user basis, for interactive shells only, (usually) defined in ~/.bashrc with the default as \s-\v\$.
On my system:
$ echo "$PS1"
\[\e]0;\u@\h: \w\a\]${debian_chroot:+($debian_chroot)}\u@\h:\W\$
and expanded to:
username@hostname:pwd$
Check the PROMPTING section of man bash to see what each token does.
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1When someone answers me with this quality, I usually wonder how long will it take for me to be at your depth of knowledge. Thanks :-)– NabinNov 6, 2016 at 4:54
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3@NabinKhadka Thank you for your kind comments. I am an absolute amateur, still learning every day from the smarter people around me. Everybody was a beginner at some stage, so keep learning and best wishes!!– heemaylNov 6, 2016 at 5:05
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PS1,PS2, andPS4are POSIX.PS3is used by the non-POSIXselectcommand, andbashrecently introduced aPS0prompt to display after reading a command but before actually executing it.– chepnerNov 6, 2016 at 14:36 -
@chepner Too much generalization from my side (on popular prompts) :/– heemaylNov 6, 2016 at 14:40
