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Closed 11 months ago.
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In Posix, what is the bash pipe identity? That is, the program which copies stdin to stdout?
The Posix bash pipe identity is cat -.
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Closed 1 year ago.
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When I run the ps -f command on Linux, the output shows 'bash' and '-bash'. I think there must be some diffrence between them. Is there someone can explain it, especially '-bash'? What is the meaning of the leading hyphen?
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Closed 2 years ago.
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I installed bash in my Anaconda prompt, and this is what I'm seeing:
bash-4.3$
and I would like to see something like:
zzzz#zzvdhdc/users/xxx/myactualdirectory
use \w for the current directory:
PS1='\w $'
see man bash for more options to change your promt.
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Closed 7 years ago.
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I'm writing a little bash script.
As written in the reference:
http://linuxcommand.org/man_pages/ls1.html
ls -A
Should not list "./" and "../" directories.
But... on my system (centOS) is still listing it.
Is there some option "always on" I should be take care of before running this script?
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Closed 7 years ago.
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I'm logged in as root and i do:
su killyz && whoami
the user will switch but the whoami won't print until i Ctrl+D, why is that?
su opens a new shell and won't exit until that shell is closed, via Ctrl-D or some other method.
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Closed 9 years ago.
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When say using sudo, it requires a password. But at the instance, I decide that I do not actually want to take the command (or forget the password and want to try again later). What should I do other than close the terminal externally?
Type Control-c to kill the command.