my problem is this: when I run a script from the command line it works but returns a failure if I run it from crontab.
Basically I wanted to send a file to hdfs,
I thought it was related to the fact that crontab do not know the path to hdfs so I put the full path but it still does not work: here is the piece of code that fails :
and here is the nice error message
Any help please ?
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Last edited by Scrutinizer; 11-09-2017 at 06:31 AM..
Reason: anonymized data
Dear Friends,
I have tried to fire a job on daily basis through crontab command but it willn't work.
i have given in the following manner:
07 19 * * * exp /user_name/passwd/ file = /path/file-name full = N owner = user-name
but it is giving error that permission denied.
i have checked that... (8 Replies)
Hi everyone,
when executing this command in unix:
echo "WM7 Fatal Alerts:", $(cat query1.txt) > a.csvIt works fine, but running this command in a shell script gives an error saying that there's a syntax error.
here is content of my script:
tdbsrvr$ vi hc.sh
"hc.sh" 22 lines, 509... (4 Replies)
I have the following expect script sitting on a Linux box.
===
#!/usr/bin/expect -f
#
# backup.expect
#
# Expect script to backup a firewall via a SSH session
#
#
set firewall
set username
set password
set prompt
set filename
match_max 50000
spawn ssh -l... (2 Replies)
I have made a shell script(/bin/sh) that starts a perl script (that I haven't made my self) that's starts a ssh session. The ssh session uses a private/public key to login so no password is needed. The Perl script works perfect.
But when I put it in a cronjob (crontab) the ssh connection asks... (6 Replies)
Hi
I have created a script. Which i have configured in cron to make it run in every 2 min. But script is not running. If I checl the cron log at /var/cron/log .it shows its running in every 2 min. Below is the command which i configured in crontab.
But I am not able to find the way so that... (9 Replies)
Dear Friends,
I am trying to copy SAP log file from one HPux server1 to another HPux server2 remotely through one script.
following command has written in the script.
rcp -rp /oracle/PRD/sapreorg/*.dbf oraprd@drsite:/oracle/PRD/sapreorg
Above command working fine from command mode.... (5 Replies)
This is the crontab it is supossed to be running everyday but it didnt
5 0 * * * /export/app/CO/opge/scr/Informe_parametros_colombia.ksh >/dev/null 2>&1
Inside the above script connects to a database and extract data to a flat file, manually i run the script at about 2 a.m. and Works OK,... (6 Replies)
Hi,
I have written one script which is connecting to the the database and generating one CSV, it is running fine when i ran it manually though it is throwing any warning but CSV is generating and working fine but same script when i have configured in crontab not working and giving error, kindly... (6 Replies)
Hi,
I have written one script which is connecting to the the database and generating one CSV, it is running fine when i ran it manually though it is throwing any warning but CSV is generating and working fine but same script when i have configured in crontab not working and giving error, kindly... (1 Reply)
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 CENTOS
crontab
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)