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assign a value to a variable


 
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# 1  
assign a value to a variable

I have a list of names in a file.
i want to assign those names to a variable in such a manner
eg:
$cat file.txt
pete
lisa
john

var=pete-lisa-john

how do i do this in shell scripting?
# 2  
Something like this:
Code:
$cat test
123
aaa124
125bbb
126
127
123

Code:
$a=$(awk 'BEGIN {ORS="-"}{print}' test)
a=${a%-}
$echo $a
123-aaa124-125bbb-126-127-123


Last edited by tayyabq8; 01-16-2007 at 08:47 AM..
# 3  
I dont want the last hifen to appear

A-B-C-D

not

A-B-C-D-
# 4  
Code:
var=$( sed -n -e ":a" -e "$ s/\n/-/gp;N;b a" file )

or
Code:
var=$( tr '\n' '-' <file )
var=${var%-}

# 5  
Quote:
Originally Posted by Shivdatta
I dont want the last hifen to appear

A-B-C-D

not

A-B-C-D-
I have edited my post, have a look at it.
# 6  
Quote:
Originally Posted by Shivdatta
I have a list of names in a file.
i want to assign those names to a variable in such a manner
eg:
$cat file.txt
pete
lisa
john

var=pete-lisa-john

how do i do this in shell scripting?
With bash:

$ cat file.txt
pete
lisa
john

$ var=$(<file.txt) && var=${var//'
'/-} && echo $var
pete-lisa-john



Regards
Dimitre
# 7  
Quote:
Originally Posted by radoulov
With bash:

$ cat file.txt
pete
lisa
john

$ var=$(<file.txt) && var=${var//'
'/-} && echo $var
pete-lisa-john



Regards
Dimitre
It works with ksh too. Great work.

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