There's a problem. Scripts do not persist across a reboot because all processes stop existing.
What do you mean by a 'start a cron job'? - cron runs at fixed intervals, so 'start a cron job' means make a cron entry using a script. And then hope it runs, I guess. Which in my opinion is a bad idea.
Before we show any more code, please explain what you want done, not how you decided to do it. Example: "I want to be sure cron works correctly after the reboot."
Hi Everyone , have a nice day
given below is a simple linux script
but its first part is not working ( variable k assignment ) , while second loop is working fine
can anyone help me out with this
#!/bin/sh
echo "Enter Date"
read date1
for i in 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14... (6 Replies)
HI im a novice with shell scripts but i need help with a random script I have this folder filled with 500 different file names... I need help creating a script that will take each filename and make a new folder named that filename and then move that file into the newly created folder. Then the... (1 Reply)
Hello everybody!
This is my first time having to write a script so your help is most appreciated.Also i am a beginner when it comes to linux so please bare with me.Thanks in advance to all who will look into this for me.
I have to write a bash script that will show the free space on the hard... (4 Replies)
I am creating a script that will incorporate multiple variables organized in a spreadsheet for pdftk. I have a 1000 page pdf that I have to split into about 300 individual pdfs. The basic command line to extract pages is as follows:
$ pdftk file.pdf cat 1-7 output newfile.pdf
file.pdf =... (8 Replies)
I need to write a script to which need to track errors in log and need to check last 100 lines in the log at every 5 minits. if error fund need to mail my self
error type
1. "STATE_ADMIN" if found need to print: <Jan 5, 2011 11:47:02 AM IST><ewaps2> <ADFAPPS2> < STATE_ADMIN
2."Java heap... (0 Replies)
#!/bin/sh
args=("$@")
echo "#================================="
echo "#Script Name:"
echo "#By:"
echo "#Purpose:"
echo "#:Command Line: picoc"
echo "#================================="
pico $@
this is my script. i think it is ok w/o error. but when i run it i got error. i'm using a VMBox... (1 Reply)
I have a text file like this:
25 raj
78 rohit
89 bhanu
58 mohit
29 mano
53 rohit
63 shiva
74 lapan
63 bhanu
what i need is a linux script to reorganize this file by adding
the relevant content(number) to the names and print only once.... please help me someone. ... (1 Reply)
Hi all,
I am trying to make a Nodemanager work in RHEL 5
I got this script from 'oraclemiddleware.wordpress.com', and made appropriate changes to suit my weblogic installation.
I keep getting the error, "line 82: syntax error: unexpected end of file".
I have checked every line to make sure all... (4 Replies)
can anyone help in this
i have a file like
2089,success
2089,failure
2087,failure
2089,success
2087,failure.
i want output like.
2089,success=2,failure=1
2087,success=1,failure=2
thanks (8 Replies)
I need to create a bash script to run through crontab, to do the below job:
1- find files that are over 12 months old in /var "files are like file_201201222.mtd file_201201333.mtd
2- Tar them in /backup like: file_201201.tar.bz2 "every month in one tar file"
3- remove them after that
4- Send... (8 Replies)
Discussion started by: Ahmad M. Kamel
8 Replies
LEARN ABOUT OSX
crontab
CRONTAB(1) BSD 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
The crontab utility 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 they are not intended to be edited directly.
(Darwin note: Although cron(8) and crontab(5) are officially supported under Darwin, their functionality has been absorbed into launchd(8),
which provides a more flexible way of automatically executing commands. See launchctl(1) for more information.)
If the /usr/lib/cron/cron.allow file exists, then you must be listed therein in order to be allowed to use this command. If the
/usr/lib/cron/cron.allow file does not exist but the /usr/lib/cron/cron.deny file does exist, then you must not be listed in the
/usr/lib/cron/cron.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. The format of these
files is one username per line, with no leading or trailing whitespace. Lines of other formats will be ignored, and so can be used for com-
ments.
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 following options are available:
-u Specify 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.
-l Display the current crontab on standard output.
-r Remove the current crontab.
-e Edit the current crontab using the editor specified by the VISUAL or EDITOR environment variables. The specified editor must edit
the file in place; any editor that unlinks the file and recreates it cannot be used. After you exit from the editor, the modified
crontab will be installed automatically.
FILES
/usr/lib/cron/cron.allow
/usr/lib/cron/cron.deny
DIAGNOSTICS
A fairly informative usage message appears if you run it with a bad command line.
SEE ALSO crontab(5), compat(5), cron(8), launchctl(1)STANDARDS
The crontab command conforms to IEEE Std 1003.2 (``POSIX.2''). The new command syntax differs from previous versions of Vixie Cron, as well
as from the classic SVR3 syntax.
AUTHORS
Paul Vixie <paul@vix.com>
BSD December 29, 1993 BSD