assign a value to a variable

Shivdatta · #1 (**permalink**) 01-16-2007

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?

tayyabq8 · #2 (**permalink**) 01-16-2007

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

anbu23 · #3 (**permalink**) 01-16-2007

Code:

var=$( sed -n -e ":a" -e "$ s/\n/-/gp;N;b a" file )

or

Code:

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

Shivdatta · #4 (**permalink**) 01-16-2007

I dont want the last hifen to appear

A-B-C-D

not

A-B-C-D-

tayyabq8 · #5 (**permalink**) 01-16-2007

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.

radoulov · #6 (**permalink**) 01-16-2007

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

tayyabq8 · #7 (**permalink**) 01-16-2007

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.

More UNIX and Linux Forum Topics You Might Find Helpful
Thread	Thread Starter	Forum	Replies	Last Post
Assign o/p of awk to a variable	c2b2	Shell Programming and Scripting	8	04-01-2009 07:50 AM
assign value to variable using AWK	HAA	Shell Programming and Scripting	4	12-06-2006 11:43 AM
assign a value to variable	markjason	Shell Programming and Scripting	3	10-10-2006 02:05 PM
hot to assign output to a variable	walnut	Shell Programming and Scripting	1	02-22-2006 09:19 PM
assign to variable	AkumaTay	UNIX for Dummies Questions & Answers	1	05-18-2002 02:11 PM

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes	Rate This Thread
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode	Rate This Thread: