07-07-2012
10 More Discussions You Might Find Interesting
1. News, Links, Events and Announcements
Numbers of users unsure what is a System Administrators work, tasks and his routine. Here is a good link on a System Administrators Work Schedule also summary of tasks or work queue that the person handle (a full checklists). Also there is some details on every tasks.
... (0 Replies)
Discussion started by: killerserv
0 Replies
2. UNIX for Dummies Questions & Answers
Could someone tell me how I can simplify the script that follows!!!
I know that there must be a way how to
grep Average from sar01..................
sar02 .......................
sar03.......................
sar04... (3 Replies)
Discussion started by: JairGuerra
3 Replies
3. UNIX for Dummies Questions & Answers
Hi guys! I have a dummy question for u :p
I cant find a solution for these tascks...tried everything (i know :cool: ).
1 Issue the following command sleep 1000
Note that sleep 1000 waits 1000 seconds!!! You cannot do anything now!!!
2 Open another terminal window and enter the tty... (1 Reply)
Discussion started by: RomeO
1 Replies
4. UNIX for Dummies Questions & Answers
hello all,
as we know that the kernal Schedules tasks with some time slice given to each.
how does the Kernal know that the time of a Task has been elapsed?
does it follow the syatem Clock?or how?
thanks for your time (4 Replies)
Discussion started by: compbug
4 Replies
5. AIX
I've been given more responsibility at work and was basically told to take junior system admin responsibilities over our aix box. The catch is, I need to learn on my own. I know basics, but what are some task that I could perform on a daily basis for starters? We have a support group, but not so... (2 Replies)
Discussion started by: NycUnxer
2 Replies
6. Shell Programming and Scripting
As far as I know
Crontab is the utulity to schedule tasks to run at specific times.Is there any utility to perform the same task (4 Replies)
Discussion started by: tjay83
4 Replies
7. Solaris
Hi there
Created some zones on my m5000, both going to be used for oracle. Been reading up about how solaris 10 has made tuning of the /etc/system file redundant and the use of rctladm / projects have taken over.
Been reading the manuals, but my head is about to explode. Thought I would... (2 Replies)
Discussion started by: sbk1972
2 Replies
8. Homework & Coursework Questions
1. Write a shell program which renames the current directory with the given file extension to another extension. The playoffs are given on the command line.
Example usage:
$ Rename txt doc
will be renamed:
aaa.txt in aaa.doc
Juhutxt in Juhudoc
...
* To solve, you can also help with... (5 Replies)
Discussion started by: eclip
5 Replies
9. Shell Programming and Scripting
Hi, I have a question.
I have a file that I need to do two things to.
The first thing I need to do is turn a file with lines before and after a line with the term "Acceptance" into only the "Acceptance" line and every line thereafter. I am using this:
grep -A1000000 "Acceptance" Brown_DL... (2 Replies)
Discussion started by: mikey11415
2 Replies
10. Shell Programming and Scripting
is it possible to automate crontab through script... I ll be getting the data i.e. cron entries from DB. (5 Replies)
Discussion started by: nikhil jain
5 Replies
LEARN ABOUT ULTRIX
crontab
crontab(5) File Formats Manual crontab(5)
Name
crontab - clock daemon table file
Syntax
/usr/lib/crontab
Description
The command executes at specified dates and times according to the instructions in the file. The file consists of lines with six fields
each. The format for a line is as follows:
minute hour day month weekday command
The following list defines each field in the line:
minute (0-59) The exact minute that the command sequence executes.
hour (0-23) The hour of the day that the command sequence executes.
day (1-31) The day of the month that the command sequence executes.
month (1-12) The month of the year that the command sequence executes.
weekday (1-7) The day of the week that the command sequence executes. Monday = 1, Tuesday = 2, and so forth.
command The complete command sequence variable that is to be executed. Note that the command string must conform to Bourne shell
syntax.
The first five integer fields may be specified as follows:
o A single number in the specified range
o Two numbers separated by a minus, meaning a range inclusive
o A list of numbers separated by commas, meaning any of the numbers
o An asterisk meaning all legal values
The sixth field is a string that is executed by the shell at the specified times. A percent sign (%) in this field is translated to a new-
line character. Only the first line of the command field, up to a percent sign (%) or end of line, is executed by the shell. The other
lines are made available to the command as standard input.
Examples
The following example is part of a file:
# periodic things
0,15,30,45 * * * * (echo '^M' `date`; echo '') >/dev/console
0,15,30,45 * * * * /usr/lib/atrun
# daily stuff
5 4 * * * sh /usr/adm/newsyslog
15 4 * * * ( cd /usr/preserve; find . -mtime +7 -a -exec rm -f {} ; )
20 4 * * * find /usr/msgs -mtime +21 -a ! -perm 444 -a ! -name bounds
-a -exec rm -f {} ;
# NOTE: The above line is wrapped.
# local cleanups
30 4 * * * find /usr/spool/mqueue -type f -mtime +5 -name df-exec rm {} ;
35 4 * * * find /usr/spool/mqueue -type f -mtime +5 -name tf-exec rm {} ;
40 4 * * * find /usr/spool/rwho -type f -mtime +21 -exec rm {} ;
#
# redirecting error output
0 17 * * 1,3,5 /bin/tar -cv /usr/sysads/smith > /dev/console 2>&1
#
Files
See Also
sh(1), cron(8)
Guide to System Environment Setup
crontab(5)