I have written a script with several variables derived from here documents. However, when I run the following code, the exit status becomes 1:
If I then type echo $?, it displays a 1. I need my code to return 0 unless there is a real error. I have error-handling code elsewhere in the script that catches the error and echoes it to the user:
Is there a mistake in my code or is there a workaround to get it to return 0?
Hi,
Can anyone plz share their experience with -
Building shell script to append the file with date in following format-
Filename_MMDDYYYY.txt
Thanks in advance (2 Replies)
Hi,
I'm reading net-snmp site, using C language and unix environment, I have manager ( do get/set command), agent and server ... I'm trying to monitor cpu, memory and disk usage and get Ip address of server and send the value back to agent, stored in variable which enable manager to gets the... (1 Reply)
I have a ksh script that runs a sqlplus script. Every time I run the ksh script it generates a log file like it should and a file called shPID (sh47398.1) with the text of the sql script. Why is it doing this? It is the only ksh script that I have that does this.
thanks. (0 Replies)
Hello,
Can any one please assist how to scirpt it:
Every day a new log file is create and I want to process only the one generated yesterday and get the data of column 3 and 6.
For example today's date is 24 then I want to get the data of log file created on 23rd.
Log Files in... (7 Replies)
Hi All,
New to unix. Here is the problem. Running a script that extracts data from hyperion essbase and generates a file in unix. This script fails most of the times with a very low success rate. The data has increased a lot in the last few months resulting in the file being more than 2 gb.
... (2 Replies)
Hi all,
I have root directory on server 1 say A and having sub directory B now my application generates output files and put in sub directory B.
now i need to transfer these files from server1 to server2 by scp which is having same directory structure A and sub directory B
I have tried... (2 Replies)
Dear Guru's
I've a requirment to grep for a string in series of log files that are getting generated almost every minute.
I'm looking to schedule a script every 15 mountes,in order to check if the error string has been generated in any of the log files generated in last 15 minutes.
Please... (3 Replies)
hello,
can someone please suggest a script to rename a file that was generated today and filename that being generated daily starts with date, its a xml file.
here is example.
# find . -type f -mtime -1
./20130529_4995733057260357019.xml
#
this finename should be renamed to this format.... (6 Replies)
Heyas
At home i have 1 nas with 3 shares, of which i used to mount 2 of them using a script with hardcoded password and username in it.
EDIT: Turns out, its not the script, but 'how i access' the nas share.. (-o user=XY,password=... VS. -o credentials=...).
Figured about credential files,... (0 Replies)
Hi All,
I have created a unix script to mail the xls file.This is being done using mailx command
fdate=`tail -1 abc.xls | cut -c1-8`
SUBJECT="CARD GL Exceptions : ${ENV} for ${fdate}"
destname=CARD_GL_Exceptions_$fdate
sed 's/#BUSINESS/BUSINESS/1' abc.xls > abc2.xls
mv abc2.xls abc.xls... (2 Replies)
Discussion started by: karthik adiga
2 Replies
LEARN ABOUT REDHAT
shlock
SHLOCK(1) General Commands Manual SHLOCK(1)NAME
shlock - create lock files for use in shell scripts
SYNOPSIS
shlock -p pid -f name [ -b ] [ -u ] [ -c ]
DESCRIPTION
Shlock tries to create a lock file named name and write the process ID pid into it. If the file already exists, shlock will read the
process ID from the file and test to see if the process is currently running. If the process exists, then the file will not be created.
Shlock exits with a zero status if it was able to create the lock file, or non-zero if the file refers to currently-active process.
OPTIONS -b Process IDs are normally read and written in ASCII. If the ``-b'' flag is used, then they will be written as a binary int. For
compatibility with other systems, the ``-u'' flag is accepted as a synonym for ``-b'' since binary locks are used by many UUCP pack-
ages.
-c If the ``-c'' flag is used, then shlock will not create a lock file, but will instead use the file to see if the lock is held by
another program. If the lock is valid, the program will exit with a non-zero status; if the lock is not valid (i.e., invoking
shlock without the flag would have succeeded), then the program will exit with a zero status.
EXAMPLES
The following example shows how shlock would be used within a shell script:
LOCK=<pathrun in inn.conf>/LOCK.send
trap 'rm -f ${LOCK} ; exit 1' 1 2 3 15
if shlock -p $$ -f ${LOCK} ; then
# Do appropriate work
else
echo Locked by `cat ${LOCK}`
fi
BUGS
shlock does not assumed to be used under a number of lock/unlock environment in a short time. Namely, shlock should be used for an envi-
ronment like daily or hourly based job.
HISTORY
Written by Rich $alz <rsalz@uunet.uu.net> after a description of HDB UUCP locking given by Peter Honeyman. This is revision 1.5.6.1, dated
2002/09/24.
SEE ALSO inn.conf(5)SHLOCK(1)