Shell Programming and Scripting

Hi, below is my master script wihch inturn runs 2 scripts in background

Code:

#master_script.sh
./subscript1.sh &
./subscript2.sh &

executed the master_script.sh from unix command prompt

Code:

$ ./master_script.sh

it is executing the subscripts and they are completing fine, however master_script.sh is not coming out (means it is not coming back to command prompt ($)) , i have to press Ctrl+C to come out.

changed master script as below,

Code:

#master_script.sh
./subscript1.sh 2>/dev/null &
./subscript2.sh 2>/dev/null &

Now it is getting redirected to command prompt. My question, is there any way we can write the subscript1, 2 outputs to files (output similar to set -x ) and comes out

Either:

Code:

./master_script.sh > /path/to/file

OR

Code:

./subscript{1,2}.sh 2>/dev/null 1>/path/to/file &

should do the trick.

hth

ITYM

Code:

./subscript1.sh 2>/dev/null 1>/path/to/file1 &
./subscript2.sh 2>/dev/null 1>/path/to/file2 &

I.e. two commands and separate output files.
It is possible to merge the stderr to the same file:

Code:

./subscript1.sh 1>/path/to/file1 2>&1 &
./subscript2.sh 1>/path/to/file2 2>&1 &

NB here the order of redirections matters: first redirect stdout to the file, then redirect stderr to the stdout descriptor.
(While ./subscript1.sh 2>/path/to/file1 1>&2 & would effectively do the same thing.)