so whenever command returns a nonzero exit status, your program exits.
Or just once, at the top of your shell, do
and your program will exit whenever any program has a nonzero exit status.
This depends on the program's exit status, though, if the program wasn't aware of any error that won't do it. So it really depends on what you mean by 'fail'. Does 'fail' for your first command mean 'find zero files'? And so forth. Tell me what you're trying to do, not the way you want to do it...
How can I compare two decimal values within a function using Bash? Function fun2 isn't comparing the decimal values. Is there a way to do this using Bash or Korn?
#!/bin/bash
set -x
x=1
z=110
function fun1() { i=`bc << EOF 2>> /dev/null
scale=3
... (1 Reply)
New to scripting in general, so patience plz. If I ask a stupid question or don't get it, I thank you for your kindness in advance.
That said, did a for i loops checks to see if a PB* file is there but I need to know two things before I copy the file.
I need to know if the file's create date... (2 Replies)
Below is my shell script. I am trying to execute two different BTEQ scripts depending on the day of the week. So on a saturday I will execute a certain BTEQ script and on other weekdays I will run the other script.
#!/bin/ksh
dt=`date +"%a"`
if then
bteq > final_output <<- EOF
.run... (3 Replies)
Hi All,
I want to echo a message in case a system is reachable by ping or echo a different message in case it's not reachable.
Sample code i wrote is
ping localhost -n 2 | grep 'ttl' > ping_op; ls ping_op > /dev/null && drReachable=Alive; echo -e `date`: \\t "DR server is reachable" >>... (5 Replies)
Hi Guys!
Anybody know how can I use a nawk or awk on a script and printing the NAME, SECTION (must be 410 or 411 or 414) and TOTAL COST of CLASS 1 and 3 combined must be greater than 50. See below desired output file.
input.txt:
NAME,CLASS,COST,SECTION
JOHN,1,10,410
JOHN,2,20,410... (2 Replies)
Hi all,
I habe a file called test.log, which contain following data :
0.0
0.1
0.1
0.1
0.1
0.2
0.3
0.3
0.4
0.4
0.6
8.7
8.8
17.2
I want to show the data which gater than 9.0 But my script not working. (4 Replies)
Hi,
I have a list of files with different filenames like nam0001.txt,pan0001.txt etc coming in /data/inbox from various places.
I needed a shell script which would:-
1)searches for a word from the filenames (coming in inbox directory) provided in input parameter.
2)if found, put in... (2 Replies)
I have a unix shell script Test.sh
more Test.sh
echo "Calling dbquery1.sh...."
./dbquery1.sh
echo "Calling dbquery2.sh...."
./dbquery2.sh
more dbquery1.sh
sqlplus -s user1/password1@DB_SID @/tmp/storedprocedures/Hello.rcp
I run Test.sh
However, I do not want dbquery2.sh to be... (3 Replies)
Here's an interesting (to me, anyway) little puzzle.
Background:
I have a process that restores a number of large(ish) files from tape backup. As an individual file is being written, it is owned by root, then the ownership is changed when that file is complete. Since this process can take... (3 Replies)
In shell scripting, I can create a conditional statement based on the success or failure (exit status)of a command such as:
pinger()
{
ping -c 2 $remote_host >/dev/null 2>&1
ping_stat=$?
}
pinger
if ]; then
echo "blahblahblah"
exit 0
fi
how is this done using Python using... (3 Replies)
Discussion started by: metallica1973
3 Replies
LEARN ABOUT BSD
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)