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Top Forums Shell Programming and Scripting moving log file into Archive directory Post 302453611 by mohullah on Wednesday 15th of September 2010 11:02:38 PM
Old 09-16-2010
moving log file into Archive directory

Hi All,

I'm trying to write a script which will do following :

- For any old log under trace directory, if found move it to Archive
- Check for a process “process-A” if it is running abort from the script
- Else start it up (start_process-A.sh this case)
- If it fails to start the process, exit with the appropriate exit code
- All of the above steps will be logged in the log file under trace
Code:
#!/bin/ksh
SERVICE='process-A'
JOB=`basename $0`
OWNPID=$$
LOGFILE=$HOME/trace/$JOB$OWNPID.log
Archive=$HOME/trace/Archive
 
archive()
{
if [ -f $HOME/trace/ start_process-A.sh.*.log ]; then
  mv $HOME/trace/ start_process-A.sh.*.log $Archive
else
  echo "No file to archive" | tee -a ${LOGFILE}
  exit 1;
fi
}

>>>> The above function moves all the files to the Archive directory as I used wildcard (*) but I want to keep the latest file (which will be generated upon completion of this script) in the trace directory and rest in the Archive directory. I have done lots of search in the google and just cannot find it. Any help will be appreciated.
Code:
# Checking process-A .. if not found - equals to 1, start it
ps -ef | grep $SERVICE | grep -v grep
if [ $? -eq 1 ]
then
  echo "`date` : $SERVICE is down, starting up ..." | tee -a ${LOGFILE}
  $HOME/ start_process-A.sh | tee -a ${LOGFILE}
else
  echo "`date` : $SERVICE is up ..aborting from the script" | tee -a ${LOGFILE}
fi
#Moving old log file into Archive directory
archive

>> Is there a was to check the start_process-A.sh script is failed or hung? if so how do I redirect it to the log file?

Last edited by Franklin52; 09-16-2010 at 02:57 AM.. Reason: Please use code tags, thank you!
 

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runsvdir(8)						      System Manager's Manual						       runsvdir(8)

NAME
runsvdir - starts and monitors a collection of runsv(8) processes SYNOPSIS
runsvdir [-P] dir [ log ] DESCRIPTION
dir must be a directory. log is a space holder for a readproctitle log, and must be at least seven characters long or absent. runsvdir starts a runsv(8) process for each subdirectory, or symlink to a directory, in the services directory dir, up to a limit of 1000 subdirectories, and restarts a runsv(8) process if it terminates. runsvdir skips subdirectory names starting with dots. runsv(8) must be in runsvdir's PATH. At least every five seconds runsvdir checks whether the time of last modification, the inode, or the device, of the services directory dir has changed. If so, it re-scans the service directory, and if it sees a new subdirectory, or new symlink to a directory, in dir, it starts a new runsv(8) process; if runsvdir sees a subdirectory being removed that was previously there, it sends the corresponding runsv(8) process a TERM signal, stops monitoring this process, and so does not restart the runsv(8) process if it exits. If the log argument is given to runsvdir, all output to standard error is redirected to this log, which is similar to the daemontools' readproctitle log. To see the most recent error messages, use a process-listing tool such as ps(1). runsvdir writes a dot to the read- proctitle log every 15 minutes so that old error messages expire. OPTIONS
-P use setsid(2) to run each runsv(8) process in a new session and separate process group. SIGNALS
If runsvdir receives a TERM signal, it exits with 0 immediately. If runsvdir receives a HUP signal, it sends a TERM signal to each runsv(8) process it is monitoring and then exits with 111. SEE ALSO
sv(8), runsv(8), runsvchdir(8), runit(8), runit-init(8), chpst(8), svlogd(8), utmpset(8), setsid(2) http://smarden.org/runit/ AUTHOR
Gerrit Pape <pape@smarden.org> runsvdir(8)
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