GNU bash, version 1.14.7(1) su - GNU sh-utils 1.12 (Debian 1.2.4, going to get room for 1.3.1 soon.)
VAR=<command options arg> ; export VAR Calling su like this echo $VAR | su - <user> gives a "stdin: is not a tty" message but does a fine job. Calling su in this other way su - <user> -c $VAR results in ANYTHING AFTER THE FIRST SPACE CHARACTER to be executed, that is only <command>. No problems if I _write_ on the command line what had to be taken from $VAR: su - <user> -c <command options arg> -------------------------- EXAMPLE -------------------------- nick:~/test# ls -l total 3 -rw-r--r-- 1 root root 20 Sep 10 16:26 file1.cat -rw-r--r-- 1 root root 30 Sep 10 16:27 file2.cat -rw-r--r-- 1 root root 46 Sep 10 16:27 file3.cat nick:~/test# COMMAND='ls -l /root/test' ; export COMMAND nick:~/test# echo $COMMAND | su - nbern stdin: is not a ttytotal 3 -rw-r--r-- 1 root root 20 Sep 10 16:26 file1.cat -rw-r--r-- 1 root root 30 Sep 10 16:27 file2.cat -rw-r--r-- 1 root root 46 Sep 10 16:27 file3.cat nick:~/test# su - nbern -c $COMMAND --cut-- --cut-- <^ Here I get the same as from 'ls' done inside /home/nbern, that is COMMAND has been truncated to ls; it does not happen if I explicitly copy the content of $COMMAND to the command line: > nick:~/test# su - nbern -c 'ls -l /root/test' total 3 -rw-r--r-- 1 root root 20 Sep 10 16:26 file1.cat -rw-r--r-- 1 root root 30 Sep 10 16:27 file2.cat -rw-r--r-- 1 root root 46 Sep 10 16:27 file3.cat nick:~/test# ------------------------------------------------------------- Am i missing something? Cheers. Nicola Bernardelli <[EMAIL PROTECTED]> --------------------------------------------------------------------------- Please use <[EMAIL PROTECTED]> for messages from any kind of robot, such as mailing lists. From that address no autoresponse messages will return even when I'm not at home. --------------------------------------------------------------------------- -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .