03-24-2006
crontab condition
hi
i have one crontab file. In crontab file i want to write a if condition is it possible by any ways.
suppose on 22.00 .. i want to run test.sh file. but only when the flag in a outer file bust.txt is 1 otherwise dont execute. same.
can we use conditions in crontab file.?
Thank you.
Regards,
Swapneel
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
awk -F"#" '{if ($19~/^1A/) print $0}'
Please explain how "~/^1A/" is working.
Thanks in advance.....:) (1 Reply)
Discussion started by: tushar_tus
1 Replies
2. Shell Programming and Scripting
here is my script
########
#! /bin/sh
export PATH=$PATH:/opt/mysql/bin/
#echo $PATH
echo $LD_LIBRARY_PATH
USER="root"
PASS="xyz"
DB="sme"
DATE=$(date +%d%b%y_%k.%M.%S)
#DATE=`date +%y-%d-%m`
if
mysqldump -u $USER -p$PASS $DB | gzip -9>/home/backup1/today_sme-$DATE.sql.gz
then
find... (10 Replies)
Discussion started by: kaushik02018
10 Replies
3. Shell Programming and Scripting
Please tell me how to write the if condition
if ] (7 Replies)
Discussion started by: sandy1028
7 Replies
4. Shell Programming and Scripting
Hi,
I am trying to execute this command, but is it not working, says "`;' unexpected"
eval $lgrep $SAM_CMD ; if ; then ; echo "No Error" ; fi
What i want is, return the command output, if it is non zero, say "No Error".
Thanks, John. (21 Replies)
Discussion started by: john_prince
21 Replies
5. Shell Programming and Scripting
Hi
I have to evaluate multiple conditions with an 'or'.
Here is an example:
if
when i use the above i get a error message
'
Please help me to know if i am missing something in the syntax.
how do i achieve multiple "or" in the same if condition.
Thanks. (11 Replies)
Discussion started by: sunrexstar
11 Replies
6. HP-UX
Executed the following if conditions .. and got different results .
only (( )) gave correct o/p with all scenarios .
Can anybody please let me know what is the difference between and ] and ((condition)) when used with if condition.
And why each condition gave different result.
1.... (2 Replies)
Discussion started by: soumyabubun
2 Replies
7. Shell Programming and Scripting
hi,
I have some problems in my simple script about the redirect echo stdout command inside a condition. Why is the echo command inside the elif still execute in the else command
Here are my simple script
After check on the two diff output the echo stdout redirect is present in two diff... (3 Replies)
Discussion started by: jao_madn
3 Replies
8. Shell Programming and Scripting
HI
My doubt may be basic one but I need to get it clarified..
When i use "if" condition that checks for many AND, OR logical conditions
like
if ]; then
return 0
fi
Even the if condition fails it returns as zero.. Any clue..
But if i add else condition like
if ]; ... (2 Replies)
Discussion started by: Priya Amaresh
2 Replies
9. Shell Programming and Scripting
o/p of my command is given below
My requirement is
if Pnumber is 0 then
stabilization.Build.2013
else
stabilization.PBuild.2013.3 (11 Replies)
Discussion started by: nikhil jain
11 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I am writing a script and using if condition as per below example.
echo $abspath
echo if ]
then
echo "file exist"
fi
but this never satisfy the condition even if i am giving correct path to it. and this works on command prompt correctly.
Please help me out in finding the root... (11 Replies)
Discussion started by: vipin kumar rai
11 Replies
CRON(8) System Manager's Manual CRON(8)
NAME
cron - clock daemon
SYNOPSIS
/usr/sbin/cron
DESCRIPTION
Cron executes commands at specified dates and times according to the instructions in the files /etc/crontab and /etc/crontab.local. None,
either one, or both of these files may be present. Since cron never exits, it should only be executed once. This is best done by running
cron from the initialization process through the file /etc/rc; see init(8).
The crontab files consist of lines of seven fields each. The fields are separated by spaces or tabs. The first five are integer patterns
to specify:
o minute (0-59)
o hour (0-23)
o day of the month (1-31)
o month of the year (1-12)
o day of the week (1-7 with 1 = Monday)
Each of these patterns may contain:
o a number in the range above
o two numbers separated by a minus meaning a range inclusive
o a list of numbers separated by commas meaning any of the numbers
o an asterisk meaning all legal values
The sixth field is a user name: the command will be run with that user's uid and permissions. The seventh field consists of all the text
on a line following the sixth field, including spaces and tabs; this text is treated as a command which is executed by the Shell at the
specified times. A percent character (``%'') in this field is translated to a new-line character.
Both crontab files are checked by cron every minute, on the minute.
FILES
/etc/crontab
/etc/crontab.local
7th Edition October 23, 1996 CRON(8)