Check output of command before outputing and keep exit code
so i have scripts that are piped and then run through one of the following mechanisms:
what i want to do is, after either of the above commands are run, if the output from the command contains a certain string, i want it to avoid printing anything. but IF the output does not contain the specified string, then it should proceed as normal and output the result of the script and also preserve the exit code.
so in essence, what im attempting to do can be best illustrated with this:
this code is faulty and i'm hoping someone can help me fix it.
I have a script which loads data files into Oracle and then moves each file into a 'processed' directory when each file has finished loading.
Last night I found that the script was failing on the mv statement (with a return code 2) and the following message,
mv: cannot access... (1 Reply)
I'm receiving an exit code 64 in our batch scheduler (BMC product control-m) executing a PERL script on UX-HP. Can you tell me where I can find a list of exit codes and their meaning. I'm assuming the exit code is from the Unix operating system not PERL. (3 Replies)
I have a question about how to get the exit code of the first command when it appears in a pipe-lined command.
For example, I have the following script:
grep abc dddd | tee -a log
if ]
then
echo "ERROR!"
fi
In the above script, ] is supposed to test the exit code of "grep abc... (3 Replies)
HI All,
I am running one shell script, in that script i am calling 4 scripts in the background.
abc.ksh &
efg.ksh &
xky.ksh &
mno.ksh &
please let me know, how could i find the success and failure of each script.
i Cannot use $?, because i want to run all the scripts in parellel.
... (2 Replies)
Hi
I have a little problem with the find command in a script that I'm writing. The script should check if there are some files younger than 100 seconds and then syncronise them with rsync.
My find command:
find -type f -cmin -100 -exec rsync -a --delete directory1/ directory2/
When I... (8 Replies)
Hi I have following code
I want If whole code executes successfully then return true If found any error then print the error
I tried if ; then
But this checks only for the just upper line execution
#!/bin/bash
PATH1=/var/log/mysql
PATH2=/home/ankur/log
FILE1=mysql-bin.index... (4 Replies)
Hi all,
I'm trying to run the sipp simulator in crontab but after some attempt I came to the conclusion that for some reason this isn't possible (maybe due to sipp interactive nature).
This is confirmed by these posts.
Now I'm trying to launch sipp from an expect script that runs in crontab.
... (0 Replies)
Hi..
i have a file ABC_*.txt in source directory which will come evry 30 min and same file will be moved to working directory first time ...and will perform some operations then we archive ABC_*.txt ..this will run for 30 min to 45 min
from 2nd time onwards requirement is ...i need to check... (3 Replies)
Hello Dear Friends,
I need to check output of svcs command and so the status of some instances.
-bash-3.00$ svcs -a | grep rfe
online Aug_04 svc:/application/rfe/rfe_master_3:default
online Aug_04 svc:/application/rfe/rfe_master_4:default
as you can see there are two... (1 Reply)
Geeks,
Could you please help me out in my script and identify the missing piece. I need to check/get the exit status of a remote command executed on remote host through script and send out an email when process/processes is/are not running on any/all server(s).
Here's the complete... (5 Replies)
Discussion started by: lovesaikrishna
5 Replies
LEARN ABOUT REDHAT
yapp
YAPP(1) User Contributed Perl Documentation YAPP(1)NAME
yapp - A perl frontend to the Parse::Yapp module
SYNOPSYS
yapp [options] grammar[.yp]
yapp -V
yapp -h
DESCRIPTION
yapp is a frontend to the Parse::Yapp module, which lets you compile Parse::Yapp grammar input files into Perl LALR(1) OO parser modules.
OPTIONS
Options, as of today, are all optionals :-)
-v Creates a file grammar.output describing your parser. It will show you a summary of conflicts, rules, the DFA (Deterministic Finite Au-
tomaton) states and overall usage of the parser.
-s Create a standalone module in which the driver is included. Note that if you have more than one parser module called from a program,
to have it standalone, you need this option only for one of your parser module.
-n Disable source file line numbering embedded in your parser module. I don't know why one should need it, but it's there.
-m module
Gives your parser module the package name (or name space or module name or class name or whatever-you-call-it) of module. It defaults
to grammar
-o outfile
The compiled output file will be named outfile for your parser module. It defaults to grammar.pm or, if you specified the option -m
A::Module::Name (see below), to Name.pm.
-t filename
The -t filename option allows you to specify a file which should be used as template for generating the parser output. The default is
to use the internal template defined in Parse::Yapp::Output.pm. For how to write your own template and which substitutions are avail-
able, have a look to the module Parse::Yapp::Output.pm : it should be obvious.
-b shebang
If you work on systems that understand so called shebangs, and your generated parser is directly an executable script, you can specifie
one with the -b option, ie:
yapp -b '/usr/local/bin/perl -w' -o myscript.pl myscript.yp
This will output a file called myscript.pl whose very first line is:
#!/usr/local/bin/perl -w
The argument is mandatory, but if you specify an empty string, the value of $Config{perlpath} will be used instead.
grammar
The input grammar file. If no suffix is given, and the file does not exists, an attempt to open the file with a suffix of .yp is tried
before exiting.
-V Display current version of Parse::Yapp and gracefully exits.
-h Display the usage screen.
BUGS
None known now :-)
AUTHOR
Francois Desarmenien <francois@fdesar.net>
COPYRIGHT
(c) Copyright 1998-1999 Francois Desarmenien, all rights reserved. See Parse::Yapp(3) for legal use and distribution rights
SEE ALSO Parse::Yapp(3)Perl(1)yacc(1)bison(1)perl v5.8.0 2001-02-11 YAPP(1)