Assign value from another file sh

Question

I have two file sh. a.sh b.sh

In a.sh I have something like this:

a=10
sh b.sh $a

echo $a

In b.sh I have

a=$1
if (( 1 > 2 ));
then
   a=20
else
   a=$1
fi

I want to assign $a in a.sh after check condition in b.sh. I try with export but without lucky.

Have you tried sourcing b.sh from within a.sh? Like, . ./b.sh $a instead of sh b.sh $a — oguz ismail
– oguz ismail, Commented Feb 29, 2020 at 12:28

stackoverflowusrone · Accepted Answer · 2020-02-29 12:32:46Z

1

You can try something like this-

a.sh

a=10
a=$(sh b.sh $a)
echo "From b.sh in a.sh a=$a"

b.sh

x=$1
>&2 echo "Got x = $x in b.sh"
if ((2>1)); then
    echo 20;
fi

Execution -

sh a.sh

Output

Got x = 10 in b.sh ## writing to error stream just for display purpose
From b.sh in a.sh a=20

answered Feb 29, 2020 at 12:32

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Comments

Jahangir · Accepted Answer · 2020-02-29 12:29:14Z

0

If i not wrong you can try like below way.

second.sh :

var = 3
echo"$var"

main.sh:

var = $(./second.sh args...)

answered Feb 29, 2020 at 12:29

Jahangir

1612 silver badges7 bronze badges

better check your syntax at shellcheck.net