If you stored the sum value of the output from crontab -l somewhere then you could run a conjob to compare the actual sum value from crontab -l with the stored one and run something if they were different.
I don't know why the following shell script doesn't work. Could you please help me out?
#!/usr/bin/ksh
test="cal > /tmp/tmp.txt 2>&1"
$test
I know it will work for the following format:
#!/usr/bin/ksh
cal > /tmp/tmp.txt 2>&1
However, I need to get the command from the user in... (1 Reply)
Hello all,
I have just started doing shell scripting.
I want to read a file which stores the status of my job I have submitted
on a cluster.
The file looks something like this :
========================FILE=============================
crab: Checking the status of all jobs: please wait... (4 Replies)
ssh -q <hostname> /opt/tcs/satish/tst.ksh
ssh -q <anotherserver> /opt/tcs/satish/tst.ksh
tst.ksh has "nohup <command> & "
when i execute below script , its throwing error as
nohup can not be found
ssh -q <anotherserver> /opt/tcs/satish/tst.ksh > log &
can someone let me... (5 Replies)
Hi ,
I have to write a shell script to telnet to specific host and execute the admin command there. Please help me to do that.
Eg : telnet hostname portno
admin command
exit (3 Replies)
I am running the export command within a view to use that value inside my build script. But while executing it it is saying "export command not found"
My code is as follows:
--------------------------
#!/bin/sh
user="test"
DIR="/bldtmp/"$user
VIEW="test.view1"
echo "TMPDIR before export... (4 Replies)
Hello,
Please i'd like to run command in a script shell , how can i do ?
here my commands :
cd blcr-build // run command in this rep
sudo insmod ./blcr_imports/kbuild/blcr_imports.ko //root
sudo insmod ./cr_module/kbuild/blcr.ko //root
Thank you. (1 Reply)
Hi all,
Here is my scenario..
i need to get dates from an existing autosys calendar and compare it with current date with in a unix shell script.
Please help me out and give me an approach to handle this.......
the general autosys calendar command used is autocal_asc ,but this is... (1 Reply)
Hello,
I need to execute below command in shell script
srvctl relocate service -d $database -s $service -i $avail -t $pref -f and also need to get the errors ,if any,in another file.
What's the right way to execute such commands in shell script?
Best regards,
Vishal (1 Reply)
friends,
i have application commands to execute in shell script it is something like this. i will login with user data it takes me to $ prompt. Example given below
login: data
ps : xxxx
$ MNSinput --this takes me to greater than prompt >
> ops --this is command i enter this output... (7 Replies)
I have a simple task to replace unix line feed end of line characters with carriage returns.
When I run the following “change file in place” sed instruction from the command line all the Line feeds are successfully replaced with Carriage returns.
sed -i 's/$/\r/' lf_file.txt
But that same... (1 Reply)
Discussion started by: hawkman2k
1 Replies
LEARN ABOUT NETBSD
crontab
CRONTAB(1) BSD General Commands Manual CRONTAB(1)NAME
crontab -- maintain crontab files for individual users (ISC Cron V4.1)
SYNOPSIS
crontab [-u user]
crontab [-elr]
DESCRIPTION
crontab is the program used to install, deinstall, or list the tables used to drive the cron(8) daemon in ISC Cron. Each user can have their
own crontab, and though these are files in /var/cron, they are not intended to be edited directly.
If the /var/cron/allow file exists, then you must be listed therein in order to be allowed to use this command. If the /var/cron/allow file
does not exist but the /var/cron/deny file does exist, then you must not be listed in the /var/cron/deny file in order to use this command.
If neither of these files exists, depending on the compiled in settings, only the super user will be allowed to use this command, or everyone
will be allowed to use this command. On NetBSD everyone is allowed to use this command.
The default maximum size for a crontab is 256 kilobytes, but this may be changed for all users on the system by putting the desired maximum
size (in bytes) in the /var/cron/maxtabsize file.
If the -u option is given, it specifies the name of the user whose crontab is to be tweaked. If this option is not given, crontab examines
``your'' crontab, i.e., the crontab of the person executing the command. Note that su(1) can confuse crontab and that if you are running
inside of su(1) you should always use the -u option for safety's sake.
The first form of this command is used to install a new crontab from some named file or standard input if the pseudo-filename ``-'' is given.
The -l option causes the current crontab to be displayed on standard output.
The -r option causes the current crontab to be removed.
The -e option is used to edit the current crontab using the editor specified by the VISUAL or EDITOR environment variables. After you exit
from the editor, the modified crontab will be installed automatically.
FILES
/var/cron/allow Optional list of users that are allowed to use crontab.
/var/cron/deny Optional list of users that are disallowed to use crontab.
/var/cron/maxtabsize Maximum size of crontab files. Defaults to 256 kilobytes.
/var/cron/tabs/ Directory containing the individual user crontab files, named after the user.
DIAGNOSTICS
A fairly informative usage message appears if you run it with a bad command line.
SEE ALSO crontab(5), cron(8)STANDARDS
The crontab command conforms to IEEE Std 1003.2 (``POSIX.2''). This new command syntax differs from previous versions of Vixie Cron, as well
as from the classic Version 3 AT&T UNIX syntax.
AUTHORS
Paul Vixie <vixie@isc.org>
BSD May 6, 2010 BSD