I am running a script on a solaris Box. specifically SunOS 5.7. I am not root. I am trying to execute a script similar to the following:
newgrp thegroup << FOO
source .login_stuff
echo "hello world"
FOO
The Script runs. The problem is it returns back to the calling process which puts me in the old group with the source .login_stuff not being sourced. I understand this behavior. What I am looking for is a way to stay in the sub shell. Now I know I could put an xterm& (see below) in the script and that would do it, but having a new xterm is undesirable.
Passing your current pid as a parameter.
newgrp thegroup << FOO
source .login_stuff
xterm&
echo $1
kill -9 $1
FOO
I do not have sg available. Also, newgrp is necessary.
newgrp adm << ANYNAME
# You can do more lines than just this.
echo This is running as group \$(id -gn)
ANYNAME
..will output:
This is running as group adm
Be careful -- Make sure you escape the '$' with a slash. The interactions are a little strange, because it expands even single-quotes before it executes the shell as the other group. so, if your primary group is 'users', and the group you're trying to use is 'adm', then:
newgrp adm << END
# You can do more lines than just this.
echo 'This is running as group $(id -gn)'
END
..will output:
This is running as group users
..because 'id -gn' was run by the current shell, then sent to the one running as adm. Anyways, I know this post is ancient, but hope this is useful to someone.