Hi all
I just have questions about
how not to show messages after you execute a certain command.
for example whenever you execute "which xxx"
there will always be a message on the terminal
saying its path or command not found will be written.
is that possible to write a shell script file
without showing these kind of messages?
Thanks!
Jump to PostSend stdout and stderr to /dev/null:
sk@sk:~$ which bash /bin/bash sk@sk:~$ which bash >> /dev/null 2>&1 sk@sk:~$You can still access the return value which is usually why this is done. Here is an example:
sk@sk:~$ which bash >> /dev/null 2>&1 sk@sk:~$ echo $? …
Send stdout and stderr to /dev/null:
sk@sk:~$ which bash
/bin/bash
sk@sk:~$ which bash >> /dev/null 2>&1
sk@sk:~$You can still access the return value which is usually why this is done. Here is an example:
sk@sk:~$ which bash >> /dev/null 2>&1
sk@sk:~$ echo $?
0
sk@sk:~$ which asoija0cjas9cuasc >> /dev/null 2>&1
sk@sk:~$ echo $?
1Thank you very much
problem solved!
Send stdout and stderr to /dev/null:
sk@sk:~$ which bash /bin/bash sk@sk:~$ which bash >> /dev/null 2>&1 sk@sk:~$You can still access the return value which is usually why this is done. Here is an example:
sk@sk:~$ which bash >> /dev/null 2>&1 sk@sk:~$ echo $? 0 sk@sk:~$ which asoija0cjas9cuasc >> /dev/null 2>&1 sk@sk:~$ echo $? 1
Please mark this thread as solved as you have found an answer to your question and good luck!
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