Check if script has execute permissions for the user running it.
Put set -x in head of the script for debug output
Output to log file instead of /dev/null
Setup environment for your script (paths etc.)
I have a backup script that is suppose to run every night of the week, but it never does, it starts to run. The way I can tell is that the dates on dump_log are changing to when the script runs. If I look in the cron log file is shows
! > root 506342 cr /etc/back_up Fri Aug 5 10:30:00... (2 Replies)
Dear Folks,
i am new to hp-ux, i have a problem scheduling the crontab,
The script is working fine at command prompt, but not working at cron, please find a solution for it ,
here are the logs and my schedule at cron:
log after restarting crontab /var/adm/cron/log
! *** cron started *** ... (11 Replies)
I am adding a piece of code which adds entry in crontab ((in brown color))
\crontab -l > $tmpfile
echo "Removing the cleanProcess entry if it already existed.."
grep -v "cleanProcess.sh" $tmpfile > $newtmpfile
lcnt=`grep -c "cleanProcess.sh" $tmpfile`
echo... (4 Replies)
Helo .
I have 2.6.13-1.1526_FC4smp here.
I am trying to make crontab execute my simple shell script, but noting happens.
here is how i am testing this :
$ pwd
/home/oracle
$ ls -l two*
ls: two*: No such file or directory
$
$ crontab -e
crontab: installing new crontab
$
$ crontab... (7 Replies)
I have a ksh script which will connect to a database and executes some sql scripts. If i run the ksh script it is working fine. But if i schedule it to run at a perticular time using cron the sql script is not running. The scriptl initially creates a spool file for sql script and then connects and... (12 Replies)
We have configured a script to be run at specific time using crontab.
# crontab -l
15 11 * * * VM_Count_V4.shas per the crontab entry script should run every day 11.15 a.m
Every time when the script is executed i get a mail but when i run it using crontab it doesn't send any mail.
However... (1 Reply)
Hi all,
I'm having a problem with a crontab entry execution for a non root user.
AIX version 5.3
user@host ~ $ oslevel -r
5300-10
cron status
user@host ~ $ ps -ef | grep cron
root 377044 1 0 Oct 27 - 0:22 /usr/sbin/cron
cron entry for user
user@host ~ $... (3 Replies)
hi,
i have schduled a job through crontab, but it is not getting executed.
bash-3.2$ crontab -l
# Monthly Download (mm hh DD MM format)
35 05 01 04 * /home/ftpsrp/srpftp1/download/ofrdb/scripts/load_ofrdb.sh crr.sh
here is the permission of the .sh files
-rwxr--r-- 1 ftpsrp srp ... (7 Replies)
My colleague who was a sysadmin , has created a cron job script which collects logs and process them.
The script works perfectly as per the defined time set by him.
it works when we keep the timing as 55 05 * * * , whereas if we try to prepone the cron task is not getting executed.
Where... (10 Replies)
Hello,
I have a bash script that finds files older than 31 days and deletes them. I have this file loading into crontab to run everyday. It ran fine the first time i loaded it in, but now when I try to run it manually (bash file.sh) I get errors.
Here is the script
TIME=" -maxdepth 1... (6 Replies)
Discussion started by: jrymer
6 Replies
LEARN ABOUT DEBIAN
subst
subst(3tcl) Tcl Built-In Commands subst(3tcl)__________________________________________________________________________________________________________________________________________________NAME
subst - Perform backslash, command, and variable substitutions
SYNOPSIS
subst ?-nobackslashes? ?-nocommands? ?-novariables? string
_________________________________________________________________DESCRIPTION
This command performs variable substitutions, command substitutions, and backslash substitutions on its string argument and returns the
fully-substituted result. The substitutions are performed in exactly the same way as for Tcl commands. As a result, the string argument
is actually substituted twice, once by the Tcl parser in the usual fashion for Tcl commands, and again by the subst command.
If any of the -nobackslashes, -nocommands, or -novariables are specified, then the corresponding substitutions are not performed. For
example, if -nocommands is specified, command substitution is not performed: open and close brackets are treated as ordinary characters
with no special interpretation.
Note that the substitution of one kind can include substitution of other kinds. For example, even when the -novariables option is speci-
fied, command substitution is performed without restriction. This means that any variable substitution necessary to complete the command
substitution will still take place. Likewise, any command substitution necessary to complete a variable substitution will take place, even
when -nocommands is specified. See the EXAMPLES below.
If an error occurs during substitution, then subst will return that error. If a break exception occurs during command or variable substi-
tution, the result of the whole substitution will be the string (as substituted) up to the start of the substitution that raised the excep-
tion. If a continue exception occurs during the evaluation of a command or variable substitution, an empty string will be substituted for
that entire command or variable substitution (as long as it is well-formed Tcl.) If a return exception occurs, or any other return code is
returned during command or variable substitution, then the returned value is substituted for that substitution. See the EXAMPLES below.
In this way, all exceptional return codes are "caught" by subst. The subst command itself will either return an error, or will complete
successfully.
EXAMPLES
When it performs its substitutions, subst does not give any special treatment to double quotes or curly braces (except within command sub-
stitutions) so the script
set a 44
subst {xyz {$a}}
returns "xyz {44}", not "xyz {$a}" and the script
set a "p} q {r"
subst {xyz {$a}}
returns "xyz {p} q {r}", not "xyz {p} q {r}".
When command substitution is performed, it includes any variable substitution necessary to evaluate the script.
set a 44
subst -novariables {$a [format $a]}
returns "$a 44", not "$a $a". Similarly, when variable substitution is performed, it includes any command substitution necessary to
retrieve the value of the variable.
proc b {} {return c}
array set a {c c [b] tricky}
subst -nocommands {[b] $a([b])}
returns "[b] c", not "[b] tricky".
The continue and break exceptions allow command substitutions to prevent substitution of the rest of the command substitution and the rest
of string respectively, giving script authors more options when processing text using subst. For example, the script
subst {abc,[break],def}
returns "abc,", not "abc,,def" and the script
subst {abc,[continue;expr {1+2}],def}
returns "abc,,def", not "abc,3,def".
Other exceptional return codes substitute the returned value
subst {abc,[return foo;expr {1+2}],def}
returns "abc,foo,def", not "abc,3,def" and
subst {abc,[return -code 10 foo;expr {1+2}],def}
also returns "abc,foo,def", not "abc,3,def".
SEE ALSO Tcl(3tcl), eval(3tcl), break(3tcl), continue(3tcl)KEYWORDS
backslash substitution, command substitution, variable substitution
Tcl 7.4 subst(3tcl)