trap: bad signal ERR

[befjr]

new server was built now all scripts that used trap errtrap ERR fail with the following

trap: bad signal ERR
#!/bin/ksh
# Initialize Trap routine.
trap errtrap SIGERR

# Function for Error Trapping
function errtrap {
es=$?
echo ' ';
echo "$step_value encountered fatal error! Status : $es";
echo "************ $progname FAILED! *************";
echo ' ';
exit 1;
}
echo "hey hey hey hey hey hey"
exit 0

gives the following error

./STXAC050_BEF[3]: trap: bad signal ERR

versions
$ echo $KSH_VERSION
@(#)PD KSH v5.2.14 99/07/13.2
(Linux release 2.4.21-47.EL #1 Wed Jul 5 20:46:55 EDT 2006) (0)

Any ideas why this signal is not available? something we need to set at system level?

thanks

[drl]

Hi.

This works for me:

#!/bin/ksh

# @(#) s1       Demonstrate pdksh trap.

echo " pdksh version: $KSH_VERSION"

trap errtrap ERR

errtrap ()
{
        echo " errtrap executed."
}

echo
echo " Begin main."

this-is-a-bad-command

exit 0

Producing:

% ./s1
 pdksh version: @(#)PD KSH v5.2.14 99/07/13.2

 Begin main.
./s1[17]: this-is-a-bad-command: not found
 errtrap executed.

It looks like it is complaining about SIGERR being used in your code rather than ERR. When I used that, I got the error message in your post.

Your code would be easier to read if you placed it in CODE blocks ... cheers, drl

[befjr]

Sorry I was using ERR, I had just tried SIGERR as I had seen it somewhere in google, I tried the example shell, I get the same message.

/app/stx/shell/>cat bef.ksh
#!/bin/ksh

# @(#) s1       Demonstrate pdksh trap.

echo " pdksh version: $KSH_VERSION"

trap errtrap ERR

errtrap ()
{
        echo " errtrap executed."
}

echo
echo " Begin main."

this-is-a-bad-command

exit 0

/app/stx/shell/>chmod 755 bef.ksh
produces

/app/stx/shell/>bef.ksh
 pdksh version: @(#)PD KSH v5.2.14 99/07/13.2
./bef.ksh[7]: trap: bad signal ERR
/app/stx/shell/>

any help greatly appreciated.

[drl]

Hi.

I cannot reproduce your problem.

I tried the same code, but with bash, and that also worked as expected. I suggest you try that.

I'll continue to track this thread, but for others to help you, I also suggest that you post some information about your operating system ... cheers, drl

[befjr]

bash shell seems to work. So I am attempting to use that for now, we will have to take the !/bin/ksh out of all our scripts though. Thanks much

kernel details
kernel-2.4.21-47.EL
kernel-utils-2.4-8.37.15
kernel-hugemem-2.4.21-47.EL
kernel-pcmcia-cs-3.1.31-19
kernel-doc-2.4.21-47.EL
kernel-smp-2.4.21-47.EL
kernel-source-2.4.21-47.EL

shadow-utils-4.0.3-26.RHEL3
cpio-2.5-4.RHEL3
logrotate-3.6.9-2.RHEL3
laus-0.1-70RHEL3
sendmail-8.12.11-4.RHEL3.6
openmotif-2.2.3-5.RHEL3.7
openmotif21-2.1.30-9.RHEL3.8
redhat-config-services-0.8.5-19.RHEL3.1
laus-libs-0.1-70RHEL3
tar-1.13.25-14.RHEL3
slocate-2.7-3.RHEL3.6
authd-1.4.1-2.RHEL3
mysql-3.23.58-16.RHEL3.1
doxygen-1.3.5-0.RHEL3.1
chkfontpath-1.9.10-1.RHEL
libraw1394-0.9.0-10.RHEL3
xloadimage-4.1-36.RHEL3