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UNIX for Dummies Questions & Answers
can't execute a shell script
Post 302501990 by homeboy on Sunday 6th of March 2011 10:21:56 AM
03-06-2011
Quote:
You logged in as someone who had no home directory, and despite not being able to create a file, you copied a file called "script" into that directory?
So you copied a file, something you are unable to do, to somewhere that didn't exist?
What error did you get (aside from the invalid . in the while loop - that you wouldn't see, as you couldn't execute the script!)? Which OS are you using?
So you copied a file, something you are unable to do, to somewhere that didn't exist?
What error did you get (aside from the invalid . in the while loop - that you wouldn't see, as you couldn't execute the script!)? Which OS are you using?
what a fool i am.....Anyway,thanks for your help---------- Post updated at 10:21 AM ---------- Previous update was at 10:17 AM ----------
Quote:
A : would mean "true". I tested a . in bash (not in Ubuntu) and it throws an error.
If your user was missing a home directory, you probably just forgot to specify it when running useradd.
You obviously resolved that using mkdir, chown and chmod.
I'm confused (it doesn't always take much to confuse me!), but where exactly is your problem, and what has nohup to do with it? (except that if you had run it nohup, the output would go to nohup.out by default)
You said you couldn't execute the script, but clearly you can if it's an infinite loop.
Try changing the . to a :. Otherwise perhaps you have an alias for date that's expecting some input (that would make the script seem "infinite")?
If your user was missing a home directory, you probably just forgot to specify it when running useradd.
You obviously resolved that using mkdir, chown and chmod.
I'm confused (it doesn't always take much to confuse me!), but where exactly is your problem, and what has nohup to do with it? (except that if you had run it nohup, the output would go to nohup.out by default)
You said you couldn't execute the script, but clearly you can if it's an infinite loop.
Try changing the . to a :. Otherwise perhaps you have an alias for date that's expecting some input (that would make the script seem "infinite")?
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LEARN ABOUT SUSE
sg
newgrp(1) General Commands Manual newgrp(1) NAME
newgrp - change effective group ID sg - execute command with different group ID SYNOPSIS
newgrp [-l] [group] sg group -c command DESCRIPTION
The newgrp command changes the user's real and effetive group ID by replacing the current shell with a new shell. A new shell is launched even if an error occours. A password is requested if the group has a password and the user is not listed in the group file as being a member of that group. The pass- word can be changed with the gpasswd(1) command. If the new effective group ID is not in the supplementary group list, newgrp will add the new group ID to the supplementary list, too. With no operands and options, newgrp changes the user's group IDs (real and effective) back to the group specified in password and group file. The sg command works like the newgrp command, except that it executes the given command with /bin/sh and upon exit the group ID of the cur- rent shell is not changed. OPTIONS
-l, --login reinitialize the environment as if the user logged in. --help Print a help list. -u, --usage Print a short usage message. -v, --version Print program version. SEE ALSO
gpasswd(1), group(5), passwd(1), passwd(5), su(1) AUTHOR
Thorsten Kukuk <kukuk@suse.de> pwdutils April 2004 newgrp(1)