$ { echo "I am in `pwd` now"; date; ls -al; } | write root
$ (echo "I am in `pwd` now"; date; ls -al) |write root
#!/bin/bash
echo "Subshell level OUTSIDE subshell = $BASH_SUBSHELL"
{ echo "Subshell level INSIDE subshell = $BASH_SUBSHELL"; }
(
echo "Subshell level INSIDE subshell = $BASH_SUBSHELL"
)
beyes@debian:~/shell$ ./sshell.sh
Subshell level OUTSIDE subshell = 0
Subshell level INSIDE subshell = 0
Subshell level INSIDE subshell = 1
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