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Shell Programming and Scripting
Script Help - Syntax Issues
Post 302307902 by gbxfan on Thursday 16th of April 2009 03:08:19 PM
04-16-2009
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10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
HI All
Some body wrote to me this Telnet Script :
#!/opt/perl/bin/perl
$ip = $ARGV;
die ("IP must be passed as an argument. $!\n") unless defined($ip);
use Net::Telnet ();
$handle = new Net::Telnet (Timeout => 10, Prompt => '/.*(#|>|\))\s*$/');
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Hi.
The below part of my bash script kicks out the following error message:
$ ./extract_eod_report_stats_new.sh 2010-04-23
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Hi All
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@ num=1
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hello everyone
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#!/bin/bash
glist=`cat /etc/group | cut -d ":" -f1,4`
ulist=`cat /etc/passwd | cut -d ":" -f1,6`
for i in $glist
do
echo "$glist"
done
for i in $ulist
do
echo "$ulist"
done
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for a in chkgrp
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Gents,
This is a follow up to my previous post:
https://www.unix.com/shell-programming-scripting/217521-python-newbie-question-regex.html
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9. Shell Programming and Scripting
#!/bin/bash
if ; then
echo "Lipsa IP";
exit;
fi
i=1
ip=$1
while ; do
if ; then
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user=`echo $rand | awk '{print $1}'`
pass=`echo $rand | awk '{print $2}'`
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Hi,
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expect "path? (Y/N)"
send "Y\r"
expect "folder path2"
send "$DIR2\r"
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LEARN ABOUT REDHAT
mktemp
MKTEMP(1) BSD General Commands Manual MKTEMP(1) NAME
mktemp -- make temporary file name (unique) SYNOPSIS
mktemp [-d] [-q] [-u] template DESCRIPTION
The mktemp utility takes the given file name template and overwrites a portion of it to create a file name. This file name is unique and suitable for use by the application. The template may be any file name with at least 6 of 'Xs' appended to it, for example /tmp/temp.XXXXXX. The trailing 'Xs' are replaced with the current process number and/or a unique letter combination. The number of unique file names mktemp can return depends on the number of 'Xs' provided; six 'Xs' will result in mktemp testing roughly 26 ** 6 combinations. If mktemp can successfully generate a unique file name, the file is created with mode 0600 (unless the -u flag is given) and the filename is printed to standard output. OPTIONS
The available options are as follows: -d Make a directory instead of a file. -q Fail silently if an error occurs. This is useful if a script does not want error output to go to standard error. -u Operate in ``unsafe'' mode. The temp file will be unlinked before mktemp exits. This is slightly better than mktemp(3) but still introduces a race condition. Use of this option is not encouraged. RETURN VALUES
The mktemp utility exits with a value of 0 on success, and 1 on failure. EXAMPLES
The following sh(1) fragment illustrates a simple use of mktemp where the script should quit if it cannot get a safe temporary file. TMPFILE=`mktemp /tmp/$0.XXXXXX` || exit 1 echo "program output" >> $TMPFILE In this case, we want the script to catch the error itself. TMPFILE=`mktemp -q /tmp/$0.XXXXXX` if [ $? -ne 0 ]; then echo "$0: Can't create temp file, exiting..." exit 1 fi Note that one can also check to see that $TMPFILE is zero length instead of checking $?. This would allow the check to be done later one in the script (since $? would get clobbered by the next shell command). SEE ALSO
mkstemp(3), mktemp(3) HISTORY
The mktemp utility appeared in OpenBSD. BSD
November, 20, 1996 BSD