10-11-2011
The exit code of the assignment is the exit code of the last command of the pipe line which is grep. Since grep didn't find any matching data, it exited with 1. The shell script exited since you have set -e at the beginning.
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1. Shell Programming and Scripting
Hi all,
I encountered a problem where my script stops running the remaining checks after becoming an admin that is written within the script.
For example:
=========================================
#!/bin/sh
check 1 # Runs successfully
check 2 # Runs successfully
/com/bin/admin #... (1 Reply)
Discussion started by: seanchew
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2. Shell Programming and Scripting
Hi - Help needed.
I have an input file that looks something like this, but with a lot more entries:
A
Customer1
B
4500
C
8000
A
Customer2
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6422
C
8922
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3. Shell Programming and Scripting
I haven't checked any installation script to see how this is done..
But I could not even do following simple task.
How do I Change existing variable value only when user enteres non-empty string. ?
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4. Shell Programming and Scripting
Hello everyone,
My problem looks quite simple , how to assign a string with spaces and lines "\n" to a variable.
I've tried all kind of quoting and is impossible, bash always try to execute the string and never executes a simple assignation.
This is part of the code
... (1 Reply)
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5. Shell Programming and Scripting
I am trying to assign the value returned by wc command to a script variale.
Code:
FILES_NAME='files_list';
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When the above code is run : it throws the error
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6. UNIX for Advanced & Expert Users
echo "hello123" | tr -dc '' | wc -c
using this command i can count the no of times a number from 0-9 occurs in the string "hello123"
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if i do
x= echo "hello123" | tr -dc '' | wc -c
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7. Shell Programming and Scripting
Hi, I was wondering if anyone could assist me for (what is probably) a very straightforward answer.
I have input files containing something like
File 1
Apples
Apples
Apples
Apples
File 2
Bananas
Bananas
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8. Shell Programming and Scripting
Hi all,
I have to write script to make my usual job easy. Basically it involve reading a output of following pattern:
crab: ExitCodes Summary
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9. Solaris
i am trying to assign the following expression to a variable in Unix shell script
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10. Shell Programming and Scripting
Hello Guys,
I would like to ask you for a favor. Could you please help me how can I assign any number as the parameter to a, from stdin (-c), in the following command line by using the 'switch' in a script?
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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)