01-07-2014
Thanks Both Of You
---------- Post updated at 06:32 AM ---------- Previous update was at 06:30 AM ----------
Thanks
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1. Shell Programming and Scripting
I am trying to issue the following command in script:
if ; then
and I am getting the following error:
bad number
Any ideas
Rgds
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2. UNIX for Dummies Questions & Answers
2 AIX servers (AIX 5.3). From local server, I need to manage remote files. But I have some errors with find :
# rsh remoteserver find /directory -name filename
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fails : I have :
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3. AIX
Hi,
While trying to configure Apache Web Server on P630 Server i am getting the below message
"Creating Makefile in src
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4. Shell Programming and Scripting
I have a directory that our applications are continuely generate new file to it , some files hv a word "error" in content , I would like to find out which file hv this word and send me notify mail to inform me which file hv this word , currently , I have a stupid script to grep the word , the... (1 Reply)
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5. Shell Programming and Scripting
Hi Guru's
here is part of my shell script where the error is coming.
function daemon_start
{
daemon=""
clear
:<<COMMENT
Meenakshi 25-Jun Code Cleanup IA - code comented - Start
echo "
`date`
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6. UNIX for Advanced & Expert Users
for FNAME in `find . -type f -exec grep -il unixs317 {} \;`; do C=`grep -c unixs317 ${FNAME}`; echo "${C}:${FNAME}" >> output.txt; done
When I run this command and a directory is empty it is returning an error and just does nothing more.
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7. UNIX for Dummies Questions & Answers
Have a random question:
In simple terms I have a find command on a dir:
/path/user/data/
/path/user is a link to:
/tmp/storage/
The find command outputs the files it finds as:
/path/user/data/file
What I need is:
/tmp/storage/file
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8. Programming
Please see the error below
Program:
#include<stdio.h>
#include<sys/types.h>
#include<sys/mman.h>
#include<stdlib.h>
#include<fcntl.h>
#include<sys/stat.h>
#include<unistd.h>
#include<signal.h>
#include<string.h>
main(int argc, char *argv)
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9. Shell Programming and Scripting
why is this giving me errors?
i type this in: find / -name "something.txt" 2>/dev/null
i get the following error messages:
find: bad option 2
find: path-list predicate-list
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10. Shell Programming and Scripting
Hi,
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It removes some folders but then throw below errors for others:
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LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS
--debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)