Is it possible to exit nicely(ie, to echo a message with the error occurred) from a shell script(quiet a big one ) once it encounter an error in between the lines?
For example, in my script I am calling the command mkdir and sometimes (when the directory already exists) it fails.then i want my script to exit with the error message.Currently it passes to the next command.
I tried using the below function at the start of the script:
Code:
#!/bin/sh
check_errs()
{
if [ "${1}" -ne "0" ]; then
echo "ERROR # ${1} : ${2}"
exit ${1}
fi
}
#main script
mkdir newdir_$sid
check_errs $?
but calling this function after every command sounds
Can any one give me pointers on how to call this function after every command executed or someother method by which i can exit from program as soon as an error occurs...
hi all,
i have a problem that while some of the users trying to login the following error occurs and the session is automatically closed.
ssl error: RAND_status reported there wasn't enough randomness for the PRNG.
ssl error: You need to specify RandomFile or EGDFile to obtain the randomness.... (0 Replies)
there are many script in my project.i am having a problem when i am trying to quit from child script.what is the command to wrap up all the parent script and calling script as well? exit 0 is not working.please help.... (1 Reply)
Hello All,
when I install rpm
rpm --install rpm packagename
I got the following errors
stty:standard input:invalid argument
stty:standard input:invalid argument
I dont know what i have to do exactly.
I search on google for the same but not a particular standard solution is given... (17 Replies)
Hi,
I am trying to exit the script from a function.
I was in assumption that if we use exit ( inside or outside the function) it will exit from the script.
alternatively, return will exit from that particular function.
but in my case, exit is exiting from the function and not the script.... (8 Replies)
/************************************************************************
*
* TEST NAME: setrlimitd_su.c
*
* PURPOSE: To verify the soft (rlim_cur) and hard (rlim_max) limit
* of process RLIMIT_DATA resources correctly inherited by
* the exec() system call.
*
* RESULT: function call should... (1 Reply)
Operating System: Solaris 10, Shell
We are outputting the results of our scripts to the stderr file. However we have encountered a problem where some of the lines in the file are truncated.
Is there a way to increase the terminal or column size within the script so that this does not... (4 Replies)
I have to write a script in ksh which again should call another script. Say A.ksh is calling B.ksh. Now in B.ksh if the condition we are checking for is true then we have to go back to the main script A.ksh or if the condition in B.ksh is false then we have to totally come out of the scripts.
I... (1 Reply)
Hi,
I am writing a script in which I am using an IF-Else statement.
Code sample:
# Check for the product.
If (test "$3" = "Pet") Then
Product_Code="PI"
elif (test "$3" = "Breakdown") Then
Product_Code="RI"
elif (test "$3" = "Travel") Then
Product_Code="TI"
... (2 Replies)
I need a script to keep polling "receive_dir" directory till "stopfile" get written in the directory.
This has to run despite empty directory.
So far i have this but fails if receive_dir is empty with no files with "unary operator expected". Help !!
#!/usr/bin/ksh
until
do
for i... (1 Reply)
Discussion started by: iaav
1 Replies
LEARN ABOUT SUNOS
exit
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)
04-25-2008
) once it encounter an error in between the lines?