02-16-2009
Checking for flag in a subscript?
I want to incorportae a subscript in a job script which is used for loading purposes.
What i require is that before a job runs it should check for a flag ,if flag is not present then create it and the loading should start.
Once loading finishes it should delete the flag.
So if any other load comes while loading is happening it should wait until that flag is deleted by the previous load.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Ok, I have written a main script which checks a directory contents every 30 secs then sleeps. The subscript does a usermod, if the user is logged on, it sleeps for 30 secs and then trys again over and over again.
Here's the problem. when the subscript is called ./subscript.sh or exec... (1 Reply)
Discussion started by: doublejz
1 Replies
2. Shell Programming and Scripting
a.ksh & b.ksh run at the same time and takes huge resource and time.I want to put a technique so that one wil run after another.
eg put a flag so that each script will check if it running , then sleep and wait it to finish.
Can some one advise (3 Replies)
Discussion started by: konark
3 Replies
3. Shell Programming and Scripting
This is driving me mad, where am I going wrong?
The relevant segment of code:
sub getndsybcons {
my @servers=@{$_};
my @sybservers=@{$_};
my %results;
foreach my $server(@servers) {
my $biggestsyb;
my $biggestsybval=0;
... (9 Replies)
Discussion started by: Smiling Dragon
9 Replies
4. Shell Programming and Scripting
I want to incorportae a subscript in a job script which is used for loading purposes.
What i require is that before a job runs it should check for a flag ,if flag is not present then create it and the loading should start.
Once loading finishes it should delete the flag.
So if any other load... (2 Replies)
Discussion started by: bathla
2 Replies
5. UNIX for Dummies Questions & Answers
I want to incorportae a subscript in a job script which is used for loading purposes.
What i require is that before a job runs it should check for a flag ,if flag is not present then create it and the loading should start.
Once loading finishes it should delete the flag.
So if any other load... (3 Replies)
Discussion started by: bathla
3 Replies
6. Shell Programming and Scripting
Hi everyone
I want to compare numbers line by line
Example
array = 12 15 15 19 14
I have code:
#!bin/csh
set a = 1
set b = 2
while($a<6)
if($array == $array)then
echo "EQUAL"
else if($array < $array)then
echo "SMALLER"
else
echo "BIGGER"
endif
@ a = $a + 1
@ b = $b + 1 (2 Replies)
Discussion started by: vincyoxy
2 Replies
7. Shell Programming and Scripting
I want to print a output after executing a awk command
How to represent a subscript or a superscript while using print command
eg : Ts. where character 's' is subscript of T
T2 where '2' is the superscript of T
thank you.
Shashi: (3 Replies)
Discussion started by: shashi792
3 Replies
8. UNIX for Dummies Questions & Answers
I have a script that executes another, so script1 executes script2.
Using the $0 variable inside script2 returns the name of script1.
How can I get the name of script2?
Thanks (2 Replies)
Discussion started by: charding1
2 Replies
9. Shell Programming and Scripting
Hi,I have a stored procedure to verify no of months since current fiscal.I want a shell script to exit with returtn code when the verification fails,I have shell script below but this doesnt work
sqlplus / << EOF
WHENEVER SQLERROR exit 1
WHENEVER OSERROR exit 2
DECLARE
v_time_period... (2 Replies)
Discussion started by: haadiya
2 Replies
10. UNIX for Beginners Questions & Answers
I ran into an issue today that I was able to resolve, but I don't quite understand why the resolution worked. I'm wondering if anyone can help me make sense of it.
I have a "kicker" script that calls 4 subscripts on a RHEL 6.9 server. It calls the scripts in sequence checking for a 0 exit code... (5 Replies)
Discussion started by: derndingle
5 Replies
LEARN ABOUT FREEBSD
loader.4th
LOADER.4TH(8) BSD System Manager's Manual LOADER.4TH(8)
NAME
loader.4th -- loader.conf processing tools
DESCRIPTION
The file that goes by the name of loader.4th is a set of commands designed to manipulate loader.conf(5) files. The default /boot/loader.rc
includes loader.4th and uses one of its commands to automatically read and process the standard loader.conf(5) files. Other commands exists
to help the user specify alternate configurations.
The commands of loader.4th by themselves are not enough for most uses. Please refer to the examples below for the most common situations,
and to loader(8) for additional commands.
Before using any of the commands provided in loader.4th, it must be included through the command:
include loader.4th
This line is present in the default /boot/loader.rc file, so it is not needed (and should not be re-issued) in a normal setup.
The commands provided by it are:
boot
boot kernelname [...]
boot directory [...]
boot -flag ... Boot as specified by the loader.conf(5) files read.
Depending on the arguments passed, it can override boot flags and either the kernel name or the search path for
kernel and modules.
boot-conf
boot-conf kernelname [...]
boot-conf directory [...]
boot-conf -flag ... Works like boot described above, but instead of booting immediately, uses autoboot, so it can be stopped.
start Reads /boot/defaults/loader.conf, all other loader.conf(5) files specified in it, then loads the desired kernel
and modules (if not already loaded). After which you can use the boot or autoboot commmands or simply exit
(provided autoboot_delay is not set to NO) to boot the system. start is the command used in the default
/boot/loader.rc file (see loader(8)).
initialize Initialize the support library so commands can be used without executing start first. Like start, it reads
/boot/defaults/loader.conf and all other loader.conf(5) files specified in it (but does not load kernel or
modules). Returns a flag on the stack to indicate if any configuration files were successfully loaded.
read-conf filename Reads and processes a loader.conf(5) file. Does not proceed to boot.
enable-module module Enables the loading of module.
disable-module module Disables the loading of module.
toggle-module module Toggles the loading of module on and off.
show-module module Shows the information gathered in the loader.conf(5) files about the module module.
retry Used inside loader.conf(5) files to specify the action after a module loading fails.
ignore Used inside loader.conf(5) files to specify the action after a module loading fails.
try-include file [file ...]
Process script files if they exist. Each file, in turn, is completely read into memory, and then each of its
lines is passed to the command line interpreter. If any error is returned by the interpreter, the try-include
command aborts immediately, without reading any other files, and silently returns without error.
FILES
/boot/loader The loader(8).
/boot/loader.4th loader.4th itself.
/boot/loader.rc loader(8) bootstrapping script.
/boot/defaults/loader.conf
File loaded by the start command.
EXAMPLES
Standard /boot/loader.rc:
include /boot/loader.4th
start
Load a different kernel with the standard configuration:
set kernel="kernel.old"
unload
boot-conf
Read an additional configuration file and then proceed to boot:
unload
read-conf /boot/special.conf
boot-conf
Disable the loading of the splash screen module and bitmap and then proceed to boot:
unload
disable-module splash_bmp
disable-module bitmap
boot-conf
SEE ALSO
loader.conf(5), loader(8)
HISTORY
The loader.4th set of commands first appeared in FreeBSD 3.2.
AUTHORS
The loader.4th set of commands was written by Daniel C. Sobral <dcs@FreeBSD.org>.
BUGS
A British espionage series.
BSD
November 13, 2013 BSD