hi Friends,
iam trying to write a script which will grep the particular entry in crontab of root and enable/disable it .iam a novice in scripting. your suggestions are most welcome..please help
Cheers!! (4 Replies)
Hello Experts,
I have a script which i want to run the on last day of every month.
let say I have backup.sh script which i want to run it every month last day.
Can anyone please help :confused:
thanks (4 Replies)
Hello expert,
I need a logic code {don't want to schedule into crontab} which can run some of my code on 31st of Jan, March, Mya, Aug, Oct, Dec.....
Ex:
if then
echo "success"
fi
Please help me in achieving this
Thanks (3 Replies)
Hello Guys,
I have a questions regarding running a shell script every second working day each month.
I have no clue how solve this problem :wall:.
Important is that it has to be the second working (Mo-Fr).
Example: If 1st and 2nd Days of month are Sat and Sun the script must run on 4th day... (5 Replies)
Hello all,
I'm trying to write a script to gather and send data and it works just fine at the bash command line, but when executing from CRON, it does not run properly.
My scripting skills are pretty limited and there's probably a better way, but as I said it works at the command line, but... (12 Replies)
The following bash command line works for the last day of the month. Test by replacing the 1 with tomorrows day of month number
&& echo "Day before tomorrow"Can it be used within crontab? As
* * 28-31 * * && echo "Today ls last day of month" >>/tmp/crontabtestI tried to test crontab with... (1 Reply)
I am looking for a unix script which could run a job on 2, 4 and 7 working day of the month.
if the days are falling on the saturday/sunday. it should run on the next day.
Thank you.. (9 Replies)
Hi ALL,
I have been testing this script to run for every last Sunday of the month,looks like month which have 5 sunday (july 2016 )is not passing this and failing every time.
Here is what I am using,
current_date=31
echo " CURRENT DAY -> $current_date"
if
... (2 Replies)
Discussion started by: netdbaind
2 Replies
LEARN ABOUT BSD
cron
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)