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Top Forums UNIX for Advanced & Expert Users Run shell script as different user Post 69898 by mskarica on Thursday 21st of April 2005 11:23:36 AM
Old 04-21-2005
Ok, I think I should rephrase my question. I did some more research on daemons, and I think I can ask my question better now.

A daemon is a process that runs in the background (like a fork), whithout user interaction (from what I read). So basically what happens is that when an email is received, and the shell script is invoked, a daemon is running the entire process. I need to find a way where I can make the daemon act as if it were a unix user so that the process is run as if the user is the one who is invoking the scripts that are called in the main script, rather than the daemon.

So my basic idea is: email is received, forwarded to a script (daemon is still the owner at the moment), in the main script first thing I want to do is change the user from the deamon to another valid unix account, so then everything that is performed from there on out is performed as if the unix user that I specify is the one who invoked everything.

Does that make more sense? Any ideas?

Thanks

Last edited by mskarica; 04-21-2005 at 12:30 PM..
 

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SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-a] [-k] [-q] [-t time] [file [command ...]] DESCRIPTION
The script utility makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript. If the argument command ... is given, script will run the specified command with an optional argument vector instead of an interactive shell. Options: -a Append the output to file or typescript, retaining the prior contents. -k Log keys sent to program as well as output. -q Run in quiet mode, omit the start and stop status messages. -t time Specify time interval between flushing script output file. A value of 0 causes script to flush for every character I/O event. The default interval is 30 seconds. The script ends when the forked shell (or command) exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. The script utility works best with commands that do not manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one. ENVIRONMENT
The following environment variable is utilized by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism). HISTORY
The script command appeared in 3.0BSD. BUGS
The script utility places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues. When running in -k mode, echo cancelling is far from ideal. The slave terminal mode is checked for ECHO mode to check when to avoid manual echo logging. This does not work when in a raw mode where the program being run is doing manual echo. BSD
June 6, 1993 BSD
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