Script: put the output of a command into a variable.

poincare999 · 11-02-2007, 11:50 PM

I want the output of command1 goes into variable A .
For instance, if command1 = echo -n "148" , I want put 148 into A .

I have done some tries, but these doesn't work:

Code:

echo -n "148" > A
echo -n "148" > A=
echo -n "148" | A
echo -n "148" | A=
echo -n "148" |  read A
....etc

Tks

ocicat · 11-03-2007, 12:22 AM

Quote:

Originally Posted by poincare999

I want the output of command1 goes into variable A .

Code:

#!/bin/sh
a=$(echo -n '148')
echo $a

poincare999 · 11-03-2007, 12:43 AM

Tks a lot, it works.

doc.nice · 11-04-2007, 07:01 AM

Next time, you may try searching the net or this forum, this question is very common.
When you provide more information, such as the script LANGUAGE you are using, you will get better results.

another way that would work in bash/ash/tcsh/... is
varname=`command`

(where the ` are french accents grâve, not apostrophies.)

PAix · 11-04-2007, 11:53 AM

The ` are also known as backticks. in bash the construct $( ) can be used in place of backticks, with the added advantage that the newer construct can be nested.

If you fail to learn something new here every day, check, because you may have died and just not realised it.

PAix