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How to get a shell commands stderr to screen and also to a log file and the exit status of the command (that is $?).
Any idea how to get all these?
I tried "command 2>&1 | tee error.log"
but that time I didnt get the echo $? status properly!
Thanks in advance
If you want to show stderr on screen then don't redirect it to any file. And $? will give you exit status of last command run, so explain it little more that what exactly you did.
Also take a note that, 2>&1 will redirect sterr as well stdout to specified file, so if you just want to redirect stderr, then use only 2 > filename.
actual concern is,
I wanted to print the stderr of the command execution and also wanted to compare this with an expected "message".
so actual flow will be
> check for the command exist status (using $?)
> then if exit status is not zero , I need to check for the expected "message" in the stderr and return this case differently.[Here stderr needed to be printed to the screen also]
my logic is:
>if $? is not zero will do cat of error.log and then do grep for the "message" in error.log