Re: Capturing a ^C to break out of a script?

2002-06-27 Thread Roger Oberholtzer 

On Wed, 26 Jun 2002 19:11:16 -0400
Kurt Wall [EMAIL PROTECTED] wrote:

 Also sprach James McDonald:
 
  Umm I was wondering if there is anyway of breaking out of a script by 
  capturing the CTRL+C combination and completey exiting the script I am
 
 You should be able to use the trap builtin (if you're using bash).

as well as sh and ksh/pdksh, which is as far as my shell use goes. I would
expect csh/zsh/tcsh all have the capability. wish uses a 'bind' command to
trap things (both real and virtual). Oddly, most people don't consider wish/tclsh when 
making 'shell' scripts. Too bad. Works great.

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Capturing a ^C to break out of a script?

2002-06-26 Thread James McDonald 

Umm I was wondering if there is anyway of breaking out of a script by 
capturing the CTRL+C combination and completey exiting the script I am 
running the following and if the login fails it still trys to go through the 
entire 'for in do'

Thanks

#!/bin/sh
# login to cvs

me=$0

export CVSROOT=:pserver:[EMAIL PROTECTED]:/cvs


cvs login

for  i in `echo *`

do
echo Checking Out $i
cvs -z3 co -PA $i
done

cvs logout

echo $0 Done

-- 
  James McDonald
  MCSE (Windows 2000/NT4), CCNA, CCA, MCP + I
  Registered Linux User #209832
  http://jamesmcd.dns2go.com (home)
  Red Hat Linux release 7.2 (Enigma)
  8:44pm  up 11:41,  7 users,  load average: 0.28, 0.10, 0.03

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Re: Capturing a ^C to break out of a script?

2002-06-26 Thread Joel Hammer 

I am not sure just what you want to do.

The ctrl-c key should be able to kill your program for you. If not, try
ctrl-\.

Usually, I use the   or || construct if I need to test for the success of a
command before I continue.
eg:
cvs login || exit 1 
(I am not sure what cvs login is so this command may not work)

You could also set up a trap, eg:
trap CommandToProcessCntrl-c INT

Joel


On Wed, Jun 26, 2002 at 08:48:03PM +1000, James McDonald wrote:
 Umm I was wondering if there is anyway of breaking out of a script by 
 capturing the CTRL+C combination and completey exiting the script I am 
 running the following and if the login fails it still trys to go through the 
 entire 'for in do'
 
 Thanks
 
 #!/bin/sh
 # login to cvs
 
 me=$0
 
 export CVSROOT=:pserver:[EMAIL PROTECTED]:/cvs
 
 
 cvs login
 
 for  i in `echo *`
 
 do
 echo Checking Out $i
 cvs -z3 co -PA $i
 done
 
 cvs logout
 
 echo $0 Done
 
 -- 
   James McDonald
   MCSE (Windows 2000/NT4), CCNA, CCA, MCP + I
   Registered Linux User #209832
   http://jamesmcd.dns2go.com (home)
   Red Hat Linux release 7.2 (Enigma)
   8:44pm  up 11:41,  7 users,  load average: 0.28, 0.10, 0.03
 
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Re: Capturing a ^C to break out of a script?

2002-06-26 Thread Roger Oberholtzer 


I define a procedure that will be called. In this case, it prints a message
and then calls my Exit procedure for a tidy exit:

#
# Catch program termination.
#
interrupt ()
{
cat *EOF*

ERROR: The backup was interrupted before it was complete. This means   
 that you must re-do the backup or risk loosing the files.
*EOF*

Exit ${FAILURE}
}

trap interrupt 2 3

On Wed, 26 Jun 2002 20:48:03 +1000
James McDonald [EMAIL PROTECTED] wrote:

 Umm I was wondering if there is anyway of breaking out of a script by 
 capturing the CTRL+C combination and completey exiting the script I am 
 running the following and if the login fails it still trys to go through
 the entire 'for in do'
 
 Thanks
 
 #!/bin/sh
 # login to cvs
 
 me=$0
 
 export CVSROOT=:pserver:[EMAIL PROTECTED]:/cvs
 
 
 cvs login
 
 for  i in `echo *`
 
 do
 echo Checking Out $i
 cvs -z3 co -PA $i
 done
 
 cvs logout
 
 echo $0 Done
 
 -- 
   James McDonald
   MCSE (Windows 2000/NT4), CCNA, CCA, MCP + I
   Registered Linux User #209832
   http://jamesmcd.dns2go.com (home)
   Red Hat Linux release 7.2 (Enigma)
   8:44pm  up 11:41,  7 users,  load average: 0.28, 0.10, 0.03
 
 ___
 Linux-users mailing list -
 http://linux-sxs.org/mailman/listinfo/linux-users
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 URL.


-- 
++===+
| Roger Oberholtzer  |   E-mail:[EMAIL PROTECTED] |
| OPQ Systems AB |  WWW:  http://www.opq.se/ |
| Erik Dahlbergsgatan 41-43  |Phone: Int + 46 8   314223 |
| 115 32 Stockholm   |   Mobile: Int + 46 733 621657 |
| Sweden |  Fax: Int + 46 8   302602 |
++===+

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