This solves the riddle. I'd like to comment, though, that this is a dangerous practice, because it changes the files inode-number. I suggest to change this to
Code:
cat /dev/null > /var/adm/wtmp
which will shorten the file too but leaves its metadata intact.
I have problem but i didnt solve it. Could you help me? :)
Problem: Everyday at 12.17 we will append information to the file "log" about users who are logged and the information about all processes which are active to the user_activity file in our home directory..
I know that I must use cron... (1 Reply)
I need to capture the vmstat output of a server every 5 minutes, in a text filename with the name in the format vmoutput. yesterday's date.txt. I need to get the vmstat o/p for the whole day with 5 minutes interval and send it (preferably ftp) to my local desktop folder.
eg: vmstat 300... (1 Reply)
Hello,
I have a cronjob that i am currently running which is as follows:
php /home/****/cronjob.php --debug 2>&1 >> /home/cronjoboutput.txt
That, as you may know, logs the output to a file called cronjoboutput.txt in the home directory.
I want that cronjob to output to a different file... (6 Replies)
Hi,
Can someone help me in running a cronjob everyday between 7 and 8 pm with the time interval of 5 minutes in between to repeat that script. The script is so small and I need that to run daily between this time. Please if possible provide me the syntax for this logic.
Thanks. (4 Replies)
quick question:
I have a current script that will put the output on a log file. See snapshot of the code below. I wanted this to be rotated everyday based on date. So if anyone execute the script today there will be a filecreated such as sys.log.(datetoday), if tomorrow it would be... (1 Reply)
Hi
I want to execute a cron job everyday at 14:50 hrs. I have a script like this:
TMP_FILE="/tmp/tmpcron.txt"
RES=0
/usr/bin/crontab -l >> $TMP_FILE
ADD_JOB="50 14 * * * /opt/mypath/scriptname.sh"
grep "scriptname.sh" $TMP_FILE >> /dev/null
JOB_NOT_EXIST=$?
if test $JOB_NOT_EXIST... (2 Replies)
I am facing an Issue with a particular Unix Account ( ie a particular Userid) getting LOCKED everyday between 7:30am and 8:00am. The Password associated with this particular Account has been setup such that it should never Expire at all but it does LOCK the Account after more than 3 failed... (5 Replies)
Hello,
I was trying to run a script on a dev server using cron job. It supposed to run 3rd sunday of every month.
45 4 15-21 * 0 /home/user1/myscript.sh >/dev/null 2>&1 # run this script 3rd sunday of every month
When I Schedule it on AIX server, It is running every day at 4:45 AM.
am I... (3 Replies)
Discussion started by: Kumar7997
3 Replies
LEARN ABOUT OSF1
ac
ac(8) System Manager's Manual ac(8)NAME
ac - Outputs connect-session records
SYNOPSIS
ac [-dp] [-w filename] [user(s) ...]
FLAGS
Outputs the total connect time for each midnight-to-midnight period for which a wtmp file exists. When user(s) is specified, this flag lim-
its the output to the login names specified by any user(s) parameter(s). Outputs the connect time total by individual login name of the
user specified with the -p flag and the user(s) parameter. Omission of this flag permits a total only for the midnight-to-midnight time
period for all logged in users to be produced. Specifies a wtmp file other than the /var/adm/wtmp file. The wtmp file you access for data
may have been created automatically by some shell script administration command (for example, runacct) or manually by the system adminis-
trator when the original /var/adm/wtmp file becomes too large.
DESCRIPTION
The ac command prints to the default output device the total connect time in hours to the nearest hundredth for all users, or the connect
time for any user(s) specified with the -p flag. It also prints the names of users specified by the user(s) parameter who have logged in
during the life of the current /var/adm/wtmp file.
Connect-time records are written by the init and the login programs and are collected in the /var/adm/wtmp file, when such a file exists.
When a /var/adm/wtmp file does not exist, no connect-time accounting records are written; consequently, when connect-time records are
wanted, the system administrator should create a /var/adm/wtmp file that has an initial record length of 0 (zero). Records in wtmp files
(there may be more than one such file) should be processed periodically to keep the files from becoming too large.
When you use the runacct command in a shell script, additional wtmp files can be automatically created whenever the current wtmp file
becomes too large. You can output the contents of any of these other files when you specify the -w flag and the desired wtmp filename.
The ac command is run independently with respect to any accounting shell procedure created or run by any of the acct/* shell procedures or
runacct commands.
EXAMPLES
To obtain an output of the total connect time for all users who have logged in during the life of the current wtmp data file, enter:
/usr/sbin/ac To obtain an output of the total connect time for grossman and mcwhinney as recorded in the default wtmp data file,
enter:
/usr/sbin/ac grossman mcwhinney To obtain an output of the connect time subtotals for grossman and mcwhinney as recorded in the
default wtmp data file, enter:
/usr/sbin/ac -p grossman mcwhinney
FILES
Specifies the command path. Is the active data file for the collection of connect-time records.
RELATED INFORMATION
Commands: login(1), init(8) delim off
ac(8)