the problem is, i need the script to exit if the ls command fails, but all it does is display the error and then write to the log file.
this is the ls command and the code after it
so you see, the tee command is probably successful which gives me a $status of 0.
how do i interogate the error from the ls command when it's tucked in way back there?
In bash, you can turn on the option "pipefail", and $? will return the result of the last command to fail in the pipeline (otherwise, it will return the result of the last command OF the pipeline). Use "set -o pipefail" to turn this feature on. Observe:
Otherwise, you have to do tricks like:
I am using the time command in a script however the output of the time command will display on my screen but not my output file. Any Ideas on how to fix this?
> cat test.sh
#############################
#!/usr/bin/sh
for COMMAND in pwd
do
time ${COMMAND}
done | sed "s/^/ ... (4 Replies)
I am using ksh on an AIX box.
I would like to redirect the stdout and stderr to a file but also show them on the terminal. Is this possible? I have tried tee within my file without success.
This is the code I have so far
exec > imp.log 2>&1 | tee exec 1>&1
I am new to shell scripting, so... (3 Replies)
exam is a ksh script. In command line I enter: exam 3 param_2 param_3 param_4.
In exam how can I get the value of the parameter which position is specified by the first argument.
Simply doing this DOES NOT work:
offset=$1
value=$$offset
can you figure out any possible way to interpret a... (5 Replies)
Hello all,
I have a script that I am trying to execute and redirect the output to a file, but I have trouble in redirection. The cron job is running properly as I see it in the mail.
This is what I am doing
In crontab file,
0 4 * * * somescript.sh > /some_location/`date '+%m%d%y_%H%M'`.log... (9 Replies)
Hi,
I need to create one KSH which will send mail to set of recipients using "mailx" command like below.
mailx -s "Test mail" "test@yahoo.com, test@gmail.com" <$output.txt
The recipients are in different domains (like yahoo, gmail, etc.).
My requirement is, if any mail is undelivered,... (1 Reply)
Hi,
I have perl script which is calling an external command using "system()" with argument.
But i am not able to capture the output.Even tried with backtick also with no luck.
.
.
$number=<>;
system ("cmd $number >output.txt"); (2 Replies)
Hello,
i'm trying to implement the times() function and i'm programming in C.
I'm using the "struct tms" structure which consists of the fields:
The tms_utime structure member is the CPU time charged for the execution of user instructions of the calling process.
The tms_stime structure... (1 Reply)
I have a script to send an email like below. Problem is, the if ..fi block is not getting executed, and is coming as a part of the email body. Can anyone take a look at this? :confused:
Log file shows this:
SEND_MAIL.prog: line 64:
: command not found
echo "Input Parameters"
echo... (11 Replies)
Hello all,
I would like to create a for loop or whatever is quick that will print the one’s place of a number for 1-N times
say for example a printed page formatting is 132 characters wide,
I would like a single line
123456789012345678901234567890... ...012
That is 132 characters long. I... (11 Replies)