11-26-2007
Quote:
Originally Posted by
matrixmadhan
Did you try this ?
Ya I have tried it. The same problem persisted
Code is below
#!/bin/sh
echo "Enter the start IP"
IFS="."
read s1 s2 s3 s4
echo "Enter the End IP"
IFS="."
read e1 e2 e3 e4
TOTAL=`expr $e4 - $s4`
echo "Total is $TOTAL"
if [ $e4 -gt $s4 ];then
echo "Total number of IPs are $TOTAL"
for ((i=0;i<=$TOTAL;i++))
do
#/sbin/ifconfig bge0:$s4 plumb
#/sbin/ifconfig bge0:$s4 $s1.$s2.$s3.$s4
echo "Interfaces created are bge0:$s4"
echo "IP's created are $s1.$s2.$s3.$s4"
s4=`expr $s4 + 1`
done
else
echo "Smaller"
fi
Result is
bash-3.00$ sh test.sh
Enter the start IP
1.1.1.2
Enter the End IP
1.1.1.5
Total is 3
test.sh: syntax error at line 12: `(' unexpected
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
#!/bin/bash
for file in $HOME/*;
do
if ; then
rm -i $file > /dev/null
echo "$?"
echo "$file has been deleted"
fi
done
Been trying to learn shell scripting for a week or so now, when i run the script it doesnt display an error message, seems like it runs fine, however it doesnt delete... (10 Replies)
Discussion started by: stride6
10 Replies
2. Shell Programming and Scripting
Hi,
I have a doubt in usage of while loop in Shell script as Iam new to this.
My requirement is that,I have two different directories containing some files which move files to other folder after parsing is done.
In my script i wanted to add a while loop which checks for the count in these two... (5 Replies)
Discussion started by: jyothi_wipro
5 Replies
3. Shell Programming and Scripting
Hi,
I'm using Ksh and I'm seeing some of code in my programme as given below.
Could you please let me know whats is this meeaing ?
(I'm new to this unix)
grep "1034" /u/kkk/bin/temp5.lst|cut -c1-2 >/u/kkk/bin/temp6.lst
if
then
echo ""
... (2 Replies)
Discussion started by: shyamu544
2 Replies
4. Shell Programming and Scripting
hi i was wondering if someone can help me with a while loop..i have been looking at this for hours and dont no wut to do..
i have to make a menu style.. to have a beeter understanding i have linked a photo at the bottom...
http://www.mypicx.com/uploadimg/772204432_08022011_1.pngand then
... (1 Reply)
Discussion started by: beerpong1
1 Replies
5. Homework & Coursework Questions
hi.. this is shell scripting lab15.sh
i dont understand this lab i am at the screen shot part. i was wondering if someone can take a quick look at this lab i have linked the doc below. i dont know where to start
i have did the
Required Errorlevels
Errorlevel # but dont... (1 Reply)
Discussion started by: beerpong1
1 Replies
6. Shell Programming and Scripting
Hi Team,
I have created a script and using FOR LOOP like this and it is working fine.
for Month in 201212 201301 201302 201303
do
echo "Starting the statistics gathering of $Month partitions "
done
But in my scripts the " Month " variable is hard-coded. Can you please any one... (3 Replies)
Discussion started by: shoan
3 Replies
7. Shell Programming and Scripting
Hi ,
Please excuse me for opening a new thread i am unable to find out the syntax error
in my if else condition inside for loop in awk command ,
my actual aim is to print formatted html td tag when if condition (True) having string as "failed",
could anyone please advise what is the right... (2 Replies)
Discussion started by: karthikram
2 Replies
8. Shell Programming and Scripting
Hi,
I am using ksh , when i try to use for loop i am getting the expected output.
$for variable in $(ps -fu user | grep -i something/ | grep -i something | grep -v grep | awk '{print $2}');do
> grep $variable /tmp/some_path/*/*
> done
when tried the below to remote server, getting... (4 Replies)
Discussion started by: karthikram
4 Replies
9. Solaris
Hello,
I want to pick a random element from a list, and created these 2 lines, which work very well in ksh93. Unfortunately, I get this "bad substitution" message in ksh88.
I'm wondering if there's an equivalent to the second line of my script.. or if I have to install ksh93 to make this... (8 Replies)
Discussion started by: gfroute
8 Replies
10. Solaris
Hi,
Want to know, is there any way to restrict a Solaris user to Single Login. Means a particular user can login once and if he or someone else tries to login with his ID then a message displayed "user already logged in" and denies his attempt.
Regard,
Jeet (1 Reply)
Discussion started by: CountJeet
1 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)