Solved

bash-script: variable variable

Posted on 2002-05-23
3
676 Views
Last Modified: 2006-11-17
Hi!
 I'm trying to get this:

---------------------------
#!/bin/bash

i1="193 4 0 0 16"
i2="194 144 0 0 16"

count=2
cur=0

n=0
while [ $n -ln $count ]; do
  let n=n+1
  cur=i$n
  echo $[$cur]
done
-----------------------------

to echo this:

-----------------------------
193 4 0 0 16
194 144 0 0 16
-----------------------------

but I only get this error:
193 4 0 0 16: syntax error in expression (error token is "4 0 0 16")
and then it terminates. Any ideas how to make this work?
0
Comment
Question by:huxun
  • 2
3 Comments
 

Expert Comment

by:jolbe13
ID: 7029913
I usually solve this kind of problem with arrays. If you are not familiar with arrays I can write you an example.
0
 

Accepted Solution

by:
jolbe13 earned 50 total points
ID: 7029928
I would write it like that :

#!/bin/bash
# declare array
declare -a i

# set array values
i[1]="193 4 0 0 16"
i[2]="194 144 0 0 16"

count=2
cur=0

n=0
while [ $n -lt $count ]
do
  let n=$n+1
  cur=${i[$n]}
  echo $cur
done

Hope this help.
0
 

Author Comment

by:huxun
ID: 7030023
Yeah ... I thought of an array, but didn't think bash would support them.

Well, I was wrong :|

Thanks!
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
PHP Apache application gives "Forbidden" message 5 45
Anti-Spam SMTP Proxy Server (@SSP) 7 84
Virtualizing very old guest OS 4 80
nagios 4 php error after installation 6 77
The purpose of this article is to demonstrate how we can use conditional statements using Python.
It’s 2016. Password authentication should be dead — or at least close to dying. But, unfortunately, it has not traversed Quagga stage yet. Using password authentication is like laundering hotel guest linens with a washboard — it’s Passé.
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now