Actually this script was already written long back in sunsolaris and I need to migrate it to GNU linux. the exact code is as below
code:
1) the main aim of running the perl script in background, is to send PERL script PID to mail when it started.
2) Once the script execution is competed then again script need to notify the finish.
3) here the SLEEP is set to 2
4) When I stared the script its
4) when press Ctrl-Z:
* echoing the exit and exiting the current shell but these perl and shell script are running in background. Same case even for Ctrl-C
I want to exit the PERL and SHELL when I pressed the Ctrl-C or Ctrl-Z. Please suggest or send me some sample script to handle these.
I wrote a ksh script for Helpdesk. I need to know how to disable ctrl-c,ctrl-z,ctrl-d..... so that helpdesk would not be able to get to system prompt :confused: (6 Replies)
Hi there,
I'm using HP-UX 11 machine. I am running a script, thats gonna take a long time to execute. When I press ctrl-c to come out of my script, I have to catch that signal(ctrl-c) and display that ctrl-c had been pressed. How can I do it.
Thanks in advance (2 Replies)
Hello,
I am programming some kind of shell in special distribution of Linux. My trouble comes with programming the sort function. It should work the same like in the standard shell. When you terminate input, there's need to put End Of Transmission character, which is CTRL+D. But I am not able to... (2 Replies)
how to send ctrl-c signal in scripts ???
i am executing top command in .exp script
top command gives cpu running activities on your machine
eg
# top
top - 18:41:01 up 8:38, 5 users, load average: 0.03, 0.16, 0.16
Tasks: 172 total, 1 running, 170 sleeping, 0 stopped, 1 zombie... (3 Replies)
Hi All,
I have ran one command tail -f <filename> to view newly appended text to that file. When i was done i pressed ctrl+c command to stop it but to my suprise it didn't work. I then tried top command and pressed ctrl+c and it worked fine and command aborted.
I then just checked the tail... (0 Replies)
Hi,
while executing shell script, in the middle of the process, if we kill the shell script( ctrl+z or ctrl+c), script will be killed and the files which using for the script will be in the folder.
How to handle those scenarios. Is there any possibilities, if user breaks the script, I need to... (3 Replies)
Hey , guys I am new to shell programing ,, so need a help from you guys ...
I have to write a shell script that accepts file name or directory name from the user if it is a directory then throw an error if it is a file then give the user two options .
1.overwrite the content
2.append the... (2 Replies)
Hi friends,
I am trying to add a newline char ('\n') between the query and the commit statement in the following shell script.
#! /bin/sh
echo "select * from tab; commit;" > data.sql
I have tried typing in "Ctrl-V + Ctrl-J" combination which has inserted ^@ (NUL) character but the commit... (1 Reply)
Hi..!
I'm stuck with my automation of starting a process and keeping it running even after the current ssh session has exited..
So i'm trying to use command 'screen'. which is doing exactly what i wanted, But the problem is automation of the same.
i will have to press Ctrl+a and Ctrl+d for... (2 Replies)
Discussion started by: chandana hs
2 Replies
LEARN ABOUT MINIX
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)