First time post. I did a search so I didn’t see this specific issue. It seems to be a head scratcher for me. I have an hourly job that on rare occasions, gets into an endless loop. I’ve tried different scenarios but the current version does basically the following. Find all the *.arc files and copy them to a new location. Since this runs every hour, I only copy files that don’t already exist in the new location. There is another process which follows the same logic and deletes from both the source as well as the destination. The only difference is I use the +mtime in the find command because I keep a weeks worth of files on the source and 10 days on the destination. Every once in a while ( 3 to 4 times in the last 6 months), this script gets into an endless loop and the output fills up the log directory. We have to kill the process and cleanup the files. Three questions: 1)Any thoughts on what I’m doing would cause an endless loop? 2)Any change in logic that might prevent this problem? 3)Any way to insert a trace to help trap the cause? Here is the KSH function that does the copy:
Last edited by radoulov; 06-22-2011 at 05:07 AM..
Reason: Code tags.
I need a quick script that will serve as a sort of "real time monitor" for watching some log files. I am using Bourne shell in HP-UX 10.20. I have basically created a script that never ends, unless of course I manually terminate it. Here's the script (it's called qhistory):
clear
echo "REAL... (3 Replies)
Hi,
I'm pretty new to UNIX shell scripting and need some help. We have an Informatica interface that dumps any files that have errors into a directory. I need to check that directory periodically for any of up to 9 files that might be in it and run a specific process for each file found. The... (3 Replies)
Hi ALL,
I need to take some command line arguments for my script and then want to run a function for each argument.I thought of using for loop as below, but its not working , can some one please help...
#!/bin/ksh
lpar1=$1
lpar2=$2
lpar3=$3
lpar4=$4
lpar5=$5
echo "$lpar1" >>lpar.txt
echo... (4 Replies)
I have about 5000 columns of data that i need to convert all of it into pecentages. for shorter colums i have been using this code:
{print $1/($1+$2)*100,$2/($1+$2),$3/($3+$4)*100 .....}
but this is a teadious process... is there anyway to do it without having to write all of them out?
sample... (20 Replies)
Hi,
PHP user here. I'm using an endless loop to perform to mimic a cron. The script does something every 20 minutes. It sleep()s in the meantime.
I have various checks that ensure that only instance can run, including a "gentleman agreement" locked file.
However, I'd like to make sure... (2 Replies)
Hi,
I want to write a while loop like this can any one say me whats wrong with my loop
USAGE="Usage: Mail.ksh"
integer i=3
while ((1<i<=3))
do
.
.
.
.
(( CMD_JUL = LSD_JUL - i ))
CUR_MAINT_DATE=$(julian2date ${CMD_JUL})
.
.
.
i=i-1
done (1 Reply)
When finding a string in files within a directory, one can use this:
grep -r "searchstring" dir/subdir/ > listofoccurrences.txt
For brevity sake one can enter the intended directory and use this:
grep -r "searchstring" . > listofoccurrences.txt
which as I found out leads to an endless loop,... (2 Replies)
Hi All,
I've written a script to read 2 files and compare the contents using while loop but somehow when $line is not found in test2, the script will continue looping.
Below is my code, pls advise what could went wrong
TIA
Nick
for line in test1.txt | while read line
do
grep -i... (4 Replies)
Hi,
AM very new to shell scripting and try to run a simple do while loop statement, but it ends up running endlessly. please can anyone assist, dunno what am doing wrong, any useful suggestions will be welcomed.
#!/bin/ksh
### To check a running process instance
#################... (5 Replies)
I was practicing writing simple loops as I am a new bash user and I created this script, which turned out to be an endless loop where the echo output does not stop and I do not see where my mistake is.
#!/bin/bash
echo 'enter a number from 1 to 100'
read number
while
do
... (2 Replies)