10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
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
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2. UNIX for Dummies Questions & Answers
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
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3. Shell Programming and Scripting
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.
#!/bin/bash
SERVICENAME=rsyslog
service $SERVICENAME status > /dev/null
SYSLOGSTATUS=`echo $?`
COUNT=0
THRESHOLD=3
if ... (4 Replies)
Discussion started by: kapil514
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4. Shell Programming and Scripting
cat /home/lyang001/update.sh
#!/bin/sh
#shopt -s expand_aliases
HOME_DIR=/home/lyang001/updates
UPDATE_MAIL=${HOME_DIR}/updates.mail
rm $UPDATE_MAIL -rf
cd $HOME_DIR/wr-kernel
git log --no-merges --since="20 day ago" --name-status --pretty=format:"%an %h %s %cd" origin/WRLINUX_5_0_1_HEAD >>... (2 Replies)
Discussion started by: yanglei_fage
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5. Shell Programming and Scripting
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
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6. Shell Programming and Scripting
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
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7. Shell Programming and Scripting
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
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8. Shell Programming and Scripting
Hi
I have a ksh script which fetches data from a db using a number of .arc files and creates CSV files for them and puts them on the server.
Question is, how can I specifiy the start and stop times specifically so that data is fetched for a certain period?
# Get the current time as the... (1 Reply)
Discussion started by: shajju
1 Replies
9. Shell Programming and Scripting
Hi
I have a ksh script which fetches data from a db using a number of .arc files and creates CSV files for them and puts them on the server.
Question is, can I specifiy the start and stop times manually and run the script manually to fetch data for a certain period?
# Get the current... (0 Replies)
Discussion started by: shajju
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10. Shell Programming and Scripting
Hey!
I'm working on a script that will add a user, create some configfiles, and add a crontab for the user.
The crontab looks like the following:
@reboot /home/user/program config.conf &
I would like for this process to start at the end of my script under the corresponding username by... (0 Replies)
Discussion started by: noratx
0 Replies
CRONTAB(1) User Commands CRONTAB(1)
NAME
crontab - maintains crontab files for individual users
SYNOPSIS
crontab [-u user] file
crontab [-u user] [-l | -r | -e] [-i] [-s]
crontab -n [ hostname ]
crontab -c
DESCRIPTION
Crontab is the program used to install, remove or list the tables used to serve the cron(8) daemon. Each user can have their own crontab,
and though these are files in /var/spool/, they are not intended to be edited directly. For SELinux in MLS mode, you can define more
crontabs for each range. For more information, see selinux(8).
In this version of Cron it is possible to use a network-mounted shared /var/spool/cron across a cluster of hosts and specify that only one
of the hosts should run the crontab jobs in the particular directory at any one time. You may also use crontab(1) from any of these hosts
to edit the same shared set of crontab files, and to set and query which host should run the crontab jobs.
Running cron jobs can be allowed or disallowed for different users. For this purpose, use the cron.allow and cron.deny files. If the
cron.allow file exists, a user must be listed in it to be allowed to use cron If the cron.allow file does not exist but the cron.deny file
does exist, then a user must not be listed in the cron.deny file in order to use cron. If neither of these files exists, only the super
user is allowed to use cron. Another way to restrict access to cron is to use PAM authentication in /etc/security/access.conf to set up
users, which are allowed or disallowed to use crontab or modify system cron jobs in the /etc/cron.d/ directory.
The temporary directory can be set in an environment variable. If it is not set by the user, the /tmp directory is used.
OPTIONS
-u Appends the name of the user whose crontab is to be modified. If this option is not used, crontab examines "your" crontab, i.e.,
the crontab of the person executing the command. Note that su(8) may confuse crontab, thus, when executing commands under su(8) you
should always use the -u option. If no crontab exists for a particular user, it is created for him the first time the crontab -u
command is used under his username.
-l Displays the current crontab on standard output.
-r Removes the current crontab.
-e Edits 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.
-i This option modifies the -r option to prompt the user for a 'y/Y' response before actually removing the crontab.
-s Appends the current SELinux security context string as an MLS_LEVEL setting to the crontab file before editing / replacement occurs
- see the documentation of MLS_LEVEL in crontab(5).
-n This option is relevant only if cron(8) was started with the -c option, to enable clustering support. It is used to set the host in
the cluster which should run the jobs specified in the crontab files in the /var/spool/cron directory. If a hostname is supplied,
the host whose hostname returned by gethostname(2) matches the supplied hostname, will be selected to run the selected cron jobs
subsequently. If there is no host in the cluster matching the supplied hostname, or you explicitly specify an empty hostname, then
the selected jobs will not be run at all. If the hostname is omitted, the name of the local host returned by gethostname(2) is
used. Using this option has no effect on the /etc/crontab file and the files in the /etc/cron.d directory, which are always run,
and considered host-specific. For more information on clustering support, see cron(8).
-c This option is only relevant if cron(8) was started with the -c option, to enable clustering support. It is used to query which
host in the cluster is currently set to run the jobs specified in the crontab files in the directory /var/spool/cron , as set using
the -n option.
SEE ALSO
crontab(5), cron(8)
FILES
/etc/cron.allow
/etc/cron.deny
STANDARDS
The crontab command conforms to IEEE Std1003.2-1992 (``POSIX''). This new command syntax differs from previous versions of Vixie Cron, as
well as from the classic SVR3 syntax.
DIAGNOSTICS
An informative usage message appears if you run a crontab with a faulty command defined in it.
AUTHOR
Paul Vixie <vixie@isc.org>
Colin Dean <colin@colin-dean.org>
cronie 2012-11-22 CRONTAB(1)