On 4/7/23 23:40, davidson wrote:
On Sat, 8 Apr 2023 t...@myposts.ovh wrote:
Hello
in bash shell, what's "$_" variable?
kent@westk-9463:~$ ls *html
morsekeyer.html morse.html myGameEasier.html myGame.html
The 'ls *html' "expands" to "ls morsekeyer.html morse.html
myGameEasier.html myGame.html", which means that the last item to that
last command was "myGame.html", as we see below from echoing "$_".
kent@westk-9463:~$ echo The last item on the command-line above, after
expansion, was -- $_.
The last item on the command-line, after expansion, was -- myGame.html.
Below, "*kent" does not expand any further, so "*kent" gets returned by
the "$_".
kent@westk-9463:~$ ls *kent
ls: cannot access '*kent': No such file or directory
kent@westk-9463:~$ echo The last item on the command-line above, after
expansion, was -- $_.
The last item on the command-line, after expansion, was -- *kent.
And below is a final example:
kent@westk-9463:~$ ls *conf
syslog.conf
kent@westk-9463:~$ echo The last item on the command-line above, after
expansion, was -- $_.
The last item on the command-line, after expansion, was -- syslog.conf.
