Crontab question

Shell Programming and Scripting
1

I need to run an script every 10th and 25th day in every month at 11pm.

the script name is

 /home/ss/automated.sh

I tried to execute the script every day and everytime with the below syntax. its not executing it from crontab.

 * * * * * /home/ss/automated.sh

Any idea why it not executing the script.

can you please let me the syntax for this request.

2 
cat /etc/crontab

SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root

# For details see man 4 crontabs

# Example of job definition:
# .---------------- minute (0 - 59)
# |  .------------- hour (0 - 23)
# |  |  .---------- day of month (1 - 31)
# |  |  |  .------- month (1 - 12) OR jan,feb,mar,apr ...
# |  |  |  |  .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# |  |  |  |  |
# *  *  *  *  * user-name  command to be executed

hth & Cheers

3

I am getting the below message.
I have setup the same by giving crontab -e. but the script is not executing it.

 cat /etc/crontab
cat: Cannot open /etc/crontab: No such file or directory

---------- Post updated at 08:40 AM ---------- Previous update was at 07:41 AM ----------

please find my test below.

cat test.sh
#!/bin/ksh
date > /tmp/kk.txt


crontab -l | grep "test.sh"
39 * * * * ./tmp/test.sh

But this doesn't work

4

Dont use relativ paths within crontab, use absolute paths instead. (as in your initial post)

hth

EDIT:
Or add the PATH env to crontab, put the script in such a path and just execute the script. (so the theory)
Either way, you have to make sure the script has execution flag set.

5

I am not sure how to add the PATH env to crontab ?

How to set the flag set ?

Please help me out.

6
  1. Use crontab -e to add something like:
PATH=/path/to/:/usr/bin:/bin:/sbin
  1. As for the execution flag:
chmod +x ./script.sh

However, i recomend to just use the full path in crontab!

hth

7

@sea: full path not only in crontab, but in the script itself as well.

@ramkumar15: "doesn't work" doesn't help. Be specific: did it start? If yes, did crash? If no, any output? any error msgs? filed? mailed?

@sea (post #2) that's a root crontab entry. Normal users' crontabs don't have the username.