How about using stty to remap CTRL-Q to interrupt and then trapping the signal? Of course this would also stop anyone breaking out of the script with CTRL-C which may or may not be a good thing.
---------- Post updated at 12:46 PM ---------- Previous update was at 12:38 PM ----------
Another option is to write your own menu function and add quit option by default (something like this):
Last edited by Chubler_XL; 09-12-2013 at 11:54 PM..
I apologize if I have already posted this query. I scanned back quite a few pages but could not find such a query.
If my perl code contains "exit(33)" how can I get that value in bash for use in a "if" statement.
Thanks,
Siegfried (5 Replies)
I am using functions in a script and for some strange reason the EXPORT command doesnt seem to be making my variables global.
Anyone got any ideas?
I am using one function to pass some output top another using the pipe command, eg
Function 1 | Function 2
Function 2 reads the value... (3 Replies)
Hello
Okay, for reasons related to sourcing a script from another script, I've had to put my main loop into a function, and from there I call other functions. My problem then is exiting from deep within the function call stack.
I used to simply call exit, and that would accomplish what I... (1 Reply)
Solved Stupidly I didn't put brackets around the , thanks for all the help guys
if ps ax | grep Cluster__check.bash | grep -v grep > /dev/null -- fails
(if ps ax | grep Cluster__check.bash | grep -v grep > /dev/null) --works (3 Replies)
Hi there,
following code snippet should output nothing, IMHO. But the result is "THE END".
#!/bin/bash
if true ; thenexit
fi | grep "somesearchstring"
echo "THE END"using bash 4.1.9(1)
Bug or feature?
Hagen (5 Replies)
I am newbie to perl,
I am trying to use the below syntax to replace globally a string with a variable.
$ bash -version
GNU bash, version 2.05b.0(1)-release (powerpc-ibm-aix5.1)
Copyright (C) 2002 Free Software Foundation, Inc.
$ perl -version
This is perl, v5.8.8 built for... (2 Replies)
I'm writing a bunch of scripts to automatically configure Ubuntu and I want to run the code below to remove the white dots from the login screen:
sudo xhost +SI:localuser:lightdm
sudo su lightdm -s /bin/bash
gsettings set com.canonical.unity-greeter draw-grid false
The problem is that... (3 Replies)
Hello,
I'm trying to read the variable "pause" from a for loop without luck. The function is dependant on the outcome of the test within the loop. If i run this, pause is always 0 within the function. Any ideas?
Thanks.
pause=0
users=1
(for (( ; ; ))
do
speed=`cat speed.log`
... (7 Replies)
The below bash does not seem to exit if the user response is n N no No. Is the synatax incorrect? Thank you :).
Bash
read -r -p "Is this correct? " response
if ]
then
echo "The files do not match" && exit ;;
else
.... do something
fi (5 Replies)
I have a file /u/setuplink.txt
more setuplink.txt
ln -s /u/force.sh stopf.sh
ln -s /u/tnohup.sh tnohup.sh
ln -s /u/quick.sh startquick.sh
more runstat.sh
#!/bin/bash -e
echo "START"
/u/setuplink.txt
echo "END"
i wish to exit the runstat.sh for any errors except if the link... (2 Replies)
Discussion started by: mohtashims
2 Replies
LEARN ABOUT ULTRIX
return
exit(1) User Commands exit(1)NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of
the last command executed (an EOF will also cause the shell to exit.)
return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe-
cuted.
csh
exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the
expression expr.
The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches
for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to
jump to a label that occurs between a while or for built-in command and its corresponding end.
ksh
exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8
bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing
a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit
except for a shell which has the ignoreeof option (See set below) turned on.
return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the
least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return
is invoked while not in a function or a '.' script, then it is the same as an exit.
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.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO break(1), csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 15 Apr 1994 exit(1)