10-17-2011
Which OS are you running - as there are a number of flavours of crontab ...
Please supply examples of source|&output (a before && after scenario would be helpful), having that will enable effective assistance to be given.
10 More Discussions You Might Find Interesting
1. Solaris
Hi all,
i want to know which file is updated after changes the modifications/new entries in crontab.
Please help regarding this.
regards
Krishna (1 Reply)
Discussion started by: krishna176
1 Replies
2. UNIX for Dummies Questions & Answers
How do I find files those have been updated in the last 24 hours, sort them by size descending and then display the top of the long list? (6 Replies)
Discussion started by: shantanuo
6 Replies
3. Solaris
Hi,
I would like to move all files that are updated in last 10 hrs. to some temporary folder.
Please help. (3 Replies)
Discussion started by: sanjay1979
3 Replies
4. Shell Programming and Scripting
Hi
i have many sets of files as shown below(here i have shown 2 sets)
basel_aa_20091030.txt
basel_aa_20091130.txt
basel_aa_20091230.txt
basel_bb_20091030.txt
basel_bb_20091130.txt
basel_bb_20091230.txt
from each set of files i need to select the latest updated file(there are... (3 Replies)
Discussion started by: jagadeeshn04
3 Replies
5. Shell Programming and Scripting
HI
I have a requirement to find the last updated files from a directory whcih has subdirectories and inside them we have files with .txt,.doc,.xls .. extensions. i have to find those files which were updated in the last 1hr and rename the files with respective <sub-directory>_<filename> and copy... (3 Replies)
Discussion started by: ramse8pc
3 Replies
6. Shell Programming and Scripting
Hello Friends
I am facing a weird problem :confused:, we receive thousands of files in my system on a daily basis, access time stamp on some of the files are being updated as old time stamp like 1968-01-19, Could some one help me what could be causing this? so that i can narrow down the problem... (4 Replies)
Discussion started by: Prateek007
4 Replies
7. Shell Programming and Scripting
I have a directory with source code and want to figure out the files whose content has changed.
Suppose I have two version of development work called hstmy.1.0 and hstmy.1.7. Directory structure are basically the same. However there may be additional files and directories, whose contents... (5 Replies)
Discussion started by: kristinu
5 Replies
8. Shell Programming and Scripting
I am using the below script to remove the rows which contains null values in the 3rd column.My requirement here is want to get the filenames which row is removed .please help me.
#!/usr/bin/sh
Scripts=/ushhquest/data001/Scripts
cd /ushhquest/data011/TgtFiles/MonthlyData
ls CUSTADDR*.txt >... (4 Replies)
Discussion started by: katakamvivek
4 Replies
9. Shell Programming and Scripting
If third column contains null value then it should delete the row and i want to know the files which contains null value in 3rd column.Below code is not showing the updated files correctly..not sure what the issue is.plz help me
#!/usr/bin/sh
Scripts=/ushhquest/data001/Scripts
cd... (5 Replies)
Discussion started by: katakamvivek
5 Replies
10. Shell Programming and Scripting
Hi All,
I have written one program to print the files which are not updated in the specified directory in .Dat file. If I am executing the same command in the command prompt its working fine but if I am executing in shell script it's not working fine. Please correct if any thing wrong in the... (3 Replies)
Discussion started by: bbc17484
3 Replies
LEARN ABOUT REDHAT
crontab
CRONTAB(1) General Commands Manual CRONTAB(1)
NAME
crontab - maintain crontab files for individual users (V3)
SYNOPSIS
crontab [ -u user ] file
crontab [ -u user ] { -l | -r | -e }
DESCRIPTION
Crontab is the program used to install, deinstall or list the tables used to drive the cron(8) daemon in Vixie Cron. Each user can have
their own crontab, and though these are files in /var, they are not intended to be edited directly.
If the allow file exists, then you must be listed therein in order to be allowed to use this command. If the allow file does not exist but
the deny file does exist, then you must not be listed in the deny file in order to use this command. If neither of these files exists,
then depending on site-dependent configuration parameters, only the super user will be allowed to use this command, or all users will be
able to use this command.
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(8) can confuse crontab and that if you are running
inside of su(8) 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.
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
A fairly informative usage message appears if you run it with a bad command line.
AUTHOR
Paul Vixie <paul@vix.com>
4th Berkeley Distribution 29 December 1993 CRONTAB(1)