10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Installed Solaris 11.3 Gnome Desktop
It wouldn't let me log on at lock screen after first reboot.
It finally relented and let me in after about 20 logon failures.
How do I reset password now that I am in? (10 Replies)
Discussion started by: Solaris User
10 Replies
2. UNIX for Beginners Questions & Answers
hi,
I am using hp unix server and not getting variable output present inside the while loop. I have tried changing the code and need to verify whether it is proper practice of code. I am expecting the output of varible RUN_FILE 3 to TRUE which i get inside the while loop.
RUN_FILE 1=TRUE... (8 Replies)
Discussion started by: gowthamsoft
8 Replies
3. OS X (Apple)
So my dad bought an iMac from my mom, but she does not know the admin password anymore. I read on the apple forums that I should look here for help on resetting the password. The iMac runs OSX 10.6.3. I would really appreciate any help. Thanks (3 Replies)
Discussion started by: PhsycoDragon
3 Replies
4. Emergency UNIX and Linux Support
Hi Folks,
I have recently started Apache on my Fedora 11. I placed a working html file in the ServerRoot.
I can wget and telnet from within the localhost and access the index.html.
My telnet to port 80 from another machine works fine but when I try to access the web page through Firefox I... (8 Replies)
Discussion started by: jacki
8 Replies
5. UNIX for Advanced & Expert Users
Can anyone tell me if it is possible to have cron change your password every month from an encrypted list of passwords?I have several servers I hardly ever go near but when I do the password has always expired and it takes a long time to get the administrators to reset it for me. I was thinking... (4 Replies)
Discussion started by: steadyonabix
4 Replies
6. OS X (Apple)
OSX 10.4.11 I installed an app. I am logged in as Admin. When I launch Limewire I get:
You do not have permission to open the application "xxxx".
How can I get around this?
I tried resetting permission on the terminal and I still get it. (3 Replies)
Discussion started by: coopns
3 Replies
7. Forum Support Area for Unregistered Users & Account Problems
please reset my email id (0 Replies)
Discussion started by: beed123
0 Replies
8. HP-UX
I have HP-UX 11i. My serial console is not responding to any input. How can I reset the console without rebooting the system? I can telnet in with no problem and system runs fine other than the console. Thanks. (2 Replies)
Discussion started by: mizzleman
2 Replies
9. UNIX for Dummies Questions & Answers
I'm changing from SCO UNIX to Red Hat Linux. In the UNIX box when backing up my data to tape I usually do this:
tape reset
sleep 5
nohup tar ...................
I want to know if there is a way to do "tape reset" in Red Hat Linux. (1 Reply)
Discussion started by: rrivas
1 Replies
10. UNIX for Advanced & Expert Users
Hi:
Problem: Whenever I plug-in or out a serial cable from Sun 220 Server it resets itself and gives me OK prompt. I need to use one dumb terminal for two 220s.
Any suggestions or comments will be highly appreciated. (2 Replies)
Discussion started by: s_aamir
2 Replies
exec(1) User Commands exec(1)
NAME
exec, eval, source - shell built-in functions to execute other commands
SYNOPSIS
sh
exec [argument...]
eval [argument...]
csh
exec command
eval argument...
source [-h] name
ksh
*exec [arg...]
*eval [arg...]
DESCRIPTION
sh
The exec command specified by the arguments is executed in place of this shell without creating a new process. Input/output arguments may
appear and, if no other arguments are given, cause the shell input/output to be modified.
The arguments to the eval built-in are read as input to the shell and the resulting command(s) executed.
csh
exec executes command in place of the current shell, which terminates.
eval reads its arguments as input to the shell and executes the resulting command(s). This is usually used to execute commands generated as
the result of command or variable substitution.
source reads commands from name. source commands may be nested, but if they are nested too deeply the shell may run out of file descrip-
tors. An error in a sourced file at any level terminates all nested source commands.
-h Place commands from the file name on the history list without executing them.
ksh
With the exec built-in, if arg is given, the command specified by the arguments is executed in place of this shell without creating a new
process. Input/output arguments may appear and affect the current process. If no arguments are given the effect of this command is to mod-
ify file descriptors as prescribed by the input/output redirection list. In this case, any file descriptor numbers greater than 2 that are
opened with this mechanism are closed when invoking another program.
The arguments to eval are read as input to the shell and the resulting command(s) executed.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
EXIT STATUS
For ksh:
If command is not found, the exit status is 127. If command is found, but is not an executable utility, the exit status is 126. If a redi-
rection error occurs, the shell exits with a value in the range 1-125. Otherwise, exec returns a zero exit status.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
csh(1), ksh(1), sh(1), attributes(5)
SunOS 5.10 17 Jul 2002 exec(1)
