Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Script runs good manually but failing via crontab

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Script runs good manually but failing via crontab
# 1  
Old 04-28-2014
Linux Script runs good manually but failing via crontab
Hello Gurus,

I have written small script which will start the given service if its stop .Its running fine when manually executed but its unable to run from crontab.

Code:
#!/bin/bash
SERVICENAME=rsyslog
service $SERVICENAME status > /dev/null
SYSLOGSTATUS=`echo $?`
COUNT=0
THRESHOLD=3
if [ $SYSLOGSTATUS != 0 ]
then
while [ $COUNT -le $THRESHOLD ]
do
service $SERVICENAME start > /dev/null
if [ $? != 0 ]
then
let "COUNT +=1"
else
exit 0
fi
done
echo "Problems Starting $SERVICENAME Failure" >> /tmp/Monitorscript.log
else
echo $SERVICENAME is running >> /tmp/Monitorscript.log
fi

########
Crontab entry:
* * * * * /root/Monitor_service.sh > /tmp/error.out 2>&1 

#############
cat /tmp/error.out
/root/Monitor_service.sh: line 3: service: command not found
/root/Monitor_service.sh: line 11: service: command not found
/root/Monitor_service.sh: line 11: service: command not found
/root/Monitor_service.sh: line 11: service: command not found
/root/Monitor_service.sh: line 11: service: command not found

Can someone please help me and correct what needs to done in order to fix it.
# 2  
Old 04-28-2014
Try giving full path to service. Like :
Code:
/sbin/service $SERVICENAME status > /dev/null

This User Gave Thanks to chacko193 For This Post:
kapil514
# 3  
Old 04-28-2014
Thanks it worked fine for me
# 4  
Old 04-28-2014
You are expecting that the environment for a cron job is the same as when you log in. This is not the case and is a very common mistake, probably including everyone who has ever tried it.

The easiest way to work out what is different is to fire in a cron job that just does:-
Code:
env > /tmp/cron_env
set > /tmp/cron_set
alias > /tmp/cron_alias
function > /tmp/cron_function

Make sure you use cron and not at to schedule this. The at command takes your current environment (including current directory) to run a job once.

You can then run the same commands on the command line and compare the output.

A common way to fill in the blanks is to call an environment script at the start of all your cron jobs. For example:-
Code:
#!/bin/ksh
# Your normal coding comments
# Update history or whatever you like
# Blah blah blah

# Setting environment
. /full/path/my_cron_env

# Run my code
a=1
exit 0

The my_cron_env or whatever you call it is the same format as your .profile


I hope that this helps,
Robin
These 2 Users Gave Thanks to rbatte1 For This Post:
kapil514 khaled1107
# 5  
Old 04-28-2014
rbatte1 thanks for your suggestion its useful for a learner like me.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Script only runs first time through crontab

Hello, I am trying to run a script through crontab and it runs the first time and then it does not run. I tried to run a simple script (as shown below) and I see the same issue. #!/bin/ksh clear echo "Good Morning, World." > /tmp/test123 Crontab Entry: 30 09 * * *... (9 Replies)
Discussion started by: hasn318
9 Replies

2. Shell Programming and Scripting

Job runs manually, doesn't work in crontab

I have a script (/home/admin/run_bkup.sh) that I can run manually to kick off an executable job. I want to run it in crontab, but it doesn't work. Here's the script: shell=/bin/bash today=$(date +"%m-%d-%y") /opt/CPsuite-R77/fw1/bin/upgrade_tools/upgrade_export mgt-svr-bkup-$today << EOF y... (18 Replies)
Discussion started by: df08388
18 Replies

3. Shell Programming and Scripting

Script runs manually, but not from cron

Hi, I "borrowed" a script I found online, to start a SAP router application on a Solaris 11 (SPARC) server. The script runs fine when calling it manually, but when I schedule it to run from cron, it doesn't. I don't see any warning or failure messages anywhere, just nothing happens. ... (11 Replies)
Discussion started by: bredman
11 Replies

4. UNIX for Dummies Questions & Answers

Script runs manually but not from crontab in UNIX

Hi Guys, I am executing the script called Delet.sh manually it is successfully completing the task but it is failing to run vi cron tab, I tried to pass PATH & .profile before execution but no luck, Any suggestions? Script below #!/usr/bin/ksh #set -x # Purpose : Delete folders file from... (9 Replies)
Discussion started by: Anilsa77
9 Replies

5. UNIX for Dummies Questions & Answers

Crontab script failing

Hello, A crontab script is failiing everyday but when we execute manually it runs fine Below is the script scheduled: 00 23 * * * sh /db2backup/scripts/db2_hot_backup.ksh TRAVFF > /dev/null 2>&1 Error: cat TRAVFF_online_04022014_2300.log Started : Wed Apr 2 23:00:00 EDT 2014... (2 Replies)
Discussion started by: Vishal_dba
2 Replies

6. Shell Programming and Scripting

Part of the Shell script is not running via crontab, runs fine manually

Hello Team, As a part of my job we have made a script to automate a service to restart frequently. Script having two functions when executing it's should find the existing service and kill it, then start the same service . Verified the script it's working fine when executing... (18 Replies)
Discussion started by: gowthamakanthan
18 Replies

7. Shell Programming and Scripting

Script runs fine manually but not in crontab

Hello Guys, I have scratched my head alot on this but couldn't find clue what's wrong. Can you please help me with this? My problem is as following. 1) When I manually execute following script it runs successfully with below output. bash-3.00# more smssend #!/bin/bash echo -e "<Request... (16 Replies)
Discussion started by: umarsatti
16 Replies

8. Shell Programming and Scripting

Shell Script runs good manually but not through Cron tab

Hello Every one, I have a shell script which is running fine manually, but its giving me hard time when running tru cron job. :wall:. Am using #!/usr/bin/ksh >echo $SHELL /usr/bin/ksh Cron Job is as below, it execues but dosent do what i want it to do. 47 15 * * *... (1 Reply)
Discussion started by: naren.chowdhary
1 Replies

9. Shell Programming and Scripting

Script runs manually but not correctly from crontab

Hello all, I'm new here and have a question if you don't mind helping me. I have a script that will work if I kick if off manually but not from Cron. My cron entry is this: 05,20,35,50 * * * * /scripts/status.sh > /dev/null 2>&1 The first script (works fine) is this: #!/bin/sh # #... (14 Replies)
Discussion started by: hs3082
14 Replies

10. Shell Programming and Scripting

Script runs manually but not correctly from crontab

Hi all I have this inside a shell script (bash): cd DIRECTORY find . -maxdepth 1 | sed 's#./##' | /usr/bin/xargs -I '{}' chown -Rv '{}' /DIRECTORY/'{}' All the directories in this location are named after usernames, so it simply sets the owner to that of the username of the folder. It... (5 Replies)
Discussion started by: fakesy
5 Replies
Login or Register to Ask a Question