A list is a sequence of one or more pipelines separated by one of the operators ;, &, &&, or ||, and optionally
terminated by one of ;, &, or <newline>.
Of these list operators, && and || have equal precedence, followed by ; and &, which have equal precedence.
A sequence of one or more newlines may appear in a list instead of a semicolon to delimit commands.
If a command is terminated by the control operator &, the shell executes the command in the background in a
subshell. The shell does not wait for the command to finish, and the return status is 0. Commands separated
by a ; are executed sequentially; the shell waits for each command to terminate in turn. The return status is
the exit status of the last command executed.
The control operators && and || denote AND lists and OR lists, respectively. An AND list has the form
command1 && command2
command2 is executed if, and only if, command1 returns an exit status of zero.
An OR list has the form
command1 || command2
Of course, I've made an assumption about what you mean by PROCEDURE - i.e. in what context are you using procedures? Shell? Database? Some other language?
Hi Friendz,
How to backup 40GB of data to a DLT TAPE device? How am i going to configure my backup device? Is it possible to backup more than 40GB of data to a TAPE?
regards,
daemons_advoc8 (1 Reply)
Hi, iam just starting to learn the HP-UX please help me about how to install the unix in HP9000 sever and drivers installation procedure.
Thank you,
Ramana.s (2 Replies)
Hi All,
My script will call a storedprocedure
#!/bin/bash
#
# Script for ...........
. ../conf/setting.env # Environment file to set the DATABASE
#TODAY=`date '+%Y%m%d_%H'`
#echo TODAY = $TODAY
sqlplus -s $DATABASE <<EOF
spool $TRACKING_LOGDIR/CalcFreqPgsVues_H.log
exec... (3 Replies)
Hi All,
Can anyone let me know how to take a backup of a procedure in TOAD?
For table backup we can use the following query
create table newtablename as select * from originaltablename;
But the above query wont works for procedure backup since u need to give IN or OUT parameters... (0 Replies)
i am beginig with unix
c code for sun remote procedure call to do the following:
1- The clients reads in a variable length array from the command line
2- The client offers a menu for the user to choose what to do with the array:
a. Sort the array
b. Add the array
c. Find max
d. Find... (1 Reply)
I have an expect script that interrogates several hundred unix servers for both access and directories therein using "ssh user@host ls -l /path". The combination of host/path are unique but the host may be interrogated multiple times if there are multiple paths to test.
The expect script is run... (2 Replies)
Hello guys, I am a newbie to solaris 10. Recently I was going through booting procedure of solaris 10 on sparc machines, there I was not clear with kernel phase because I read like /etc/system file is read by kernel even before root filesystem is loaded, How is it possible??
Please Help me... (4 Replies)
Hello unix.com users,
I reached a dead end with a procedure.
My files:
x.pl
#!/usr/bin/perl
use Net::FTP;
my $host = $ARGV;
my $user = $ARGV;
my $pass = $ARGV || "";
my $port = "21";
$ftp=Net::FTP->new("$host", Port=>"$port", Timeout => 5)
or die("couldn't connect to host:" .... (2 Replies)
i have say x number of procedure to run, ie i have one procedure which accepts variable and i need that to run in parallel and capture the error code if in case if it fails through the unix.
sqlplus <EOF> exec test_t (abc,124); </EOF>
sqlplus <EOF> exec test_t (abc,125); </EOF>
sqlplus <EOF>... (2 Replies)
Discussion started by: ATWC
2 Replies
LEARN ABOUT OSF1
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)