asked on

Unix Shell script in to look for a file and exit 1 if exists, otherwise exit 0

I have a script that we are converting to Autosys from a home grown scheduling tool.

The command that runs in the scheduling tool is:

if [[ -n `ls  /data/SAP/extract/MML/|grep sapgl.dat` ]]; then FILE_FOUND; fi

Open in new window

If I run that in Autosys I get error:
sh: line 2: syntax error near unexpected token `then'
sh: line 2: `exec if [[ -n `ls /data/SAP/extract/MML/|grep sapgl.dat` ]]; then FILE_FOUND; fi'

I tried replacing the 'then FILE_FOUND' with 'exit 1' and still doesn't work.

Basically if the file 'sapgl.dat' exists in that directory I need to 'exit 1' so Autosys fails. If it doesn't then it's success and process can continue. I think in Autosys I need it on a single line of code. I think the ; are line breaks but not completely sure.

Any guidance is appreciated.

elwayisgod

ASKER

I found a 'test' command. Not sure this will work as everytime I run it, it's a success. I'm using the -s param and -e and always success even when the file is there.....

test -e /data/SAP/extract/MML/sapgl.dat && exit 1 || exit 0

Open in new window

test -s /data/SAP/extract/MML/sapgl.dat && exit 1 || exit 0

Open in new window

Am I on to something with 'test' or is that not valid?

ASKER CERTIFIED SOLUTION

noci

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

elwayisgod

ASKER

That exits with 0 in Autosys for some reason so the job is success :(

std_err_file=/logs/autosys/$AUTO_JOB_NAME.$AUTORUN.tracelog
command=autosyslog -J TDC_SAPGL_EXTRACT-SAPGL -r 0 -n 0 -t E
size=0
===================================

===================================

elwayisgod

ASKER

I wrote this script and it works, but is there a way to make this a one line script so I don't have to run script outside Autosys?

#!/usr/bin/ksh
#set up variables

file="/data/SAP/extract/MML/sapgl.dat"
if [[ -f "$file" ]]; then
	exit 1;
else
	echo "No sapgl.dat file found. Process can continue!!"
fi

# exit with successful exit code
exit 0;

Open in new window

elwayisgod

ASKER

I'm stumped. Not sure it can run in Autosys.

I execute this script from Autosys and it works:

if [[ -f "/data/SAP/extract/MML/sapgl.dat" ]]; then; exit 1; fi; exit 0;

Open in new window

I put that script on the command line in Autosys and if throws errors:

std_err_file=/logs/autosys/$AUTO_JOB_NAME.$AUTORUN.tracelog
command=autosyslog -J TDC_SAPGL_EXTRACT-SAPGL -r 38973045 -n 73 -t E
size=429
===================================
/opt/CA/WorkloadAutomationAE/SystemAgent/server1/spool/TST_SCH/MAIN/WAAE_WF0.1/115313.38973045_73.59A95D3CE4A2B9169F0030AD7F8D42252C422C5C.sh: line 2: syntax error near unexpected token `then'
/opt/CA/WorkloadAutomationAE/SystemAgent/server1/spool/TST_SCH/MAIN/WAAE_WF0.1/115313.38973045_73.59A95D3CE4A2B9169F0030AD7F8D42252C422C5C.sh: line 2: `exec if [[ -f "/data/SAP/extract/MML/sapgl.dat" ]]; then; exit 1; fi; exit 0;'

===================================

Open in new window

serialband

The error is telling you that you incorrectly put then in the section. Autosys must be expecting something else. Maybe there's an extra semicolon?

SOLUTION

noci

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

elwayisgod

ASKER

We use Korn shell as default, I believe.

noci

The main problem is: exec if [[ -f "/data/SAP/extract/MML/sapgl.dat" ]]; then exit 1; fi; exit 0;
And a conditional statment on a shell commandline....

Please enter this command set in a script and call the script fro your software.

elwayisgod

ASKER

Yes. I can create the .ksh script and just call the script in Autosys and it works perfectly. Was just trying/wondering if I can run on command line because Autosys allows to run commands directly. That way I don't have to worry about someone deleting a script or maintaining it in future. That's all.

noci

only if a bare: test ! -e filename
could work, exec would not handle expressions very well on it's own, and a one line command cannot easily be interpreted.
! = not
-e = exist (-f = Exits AND is normal file, likewise -d = Exist AND is directory) So a not -e is better in this case.

elwayisgod

ASKER

Thanks for assistance. Went with separate korn shell script and just execute that via Autosys. Gave up on trying to get this on a single line in Autosys :)

Appreciate help...