Given that you overwrite ABC before you print it in script 2, ABC will always end up "xyz.txt" in that script no matter what it was before. Their values aren't protected in any way. But that's beside the point...
Variables don't travel "sideways" like that. They don't actually travel at all -- each and every program has its own, independent set of exported variables, called the 'environment'.
When you run a script or program, it gets a copy of your current environment. But the copy is unconnected. Change the child and the parent remains the same, and vice versa.
If you wanted the same variable to be set in two different programs, either set it earlier in your ~/.profile or ~/.bashrc file so it gets exported on login for you, or have a little config file thing for your scripts to source:
The "." operator runs the given script inside the current shell. This is very different from just executing './littleconfigfile' because . allows you to set your own variables instead of setting variables in a useless copy.
Last edited by Corona688; 12-15-2011 at 02:50 PM..
Hi !!
How do u run three scripts one after another automatically using crontab command at some specified regular interval.
Say i have three scripts A,B,C and i want to run the three scripts A followed by B followed by C.
REQUIRE HELP URGENTLY
Thanks in advance
Arunava
. (3 Replies)
hi,
I have one environment variable like path in my system.But in my program i need to change that path .suppose it has a value "config" now i need to chage it as "config1" or something else.i need to use that variable for complete project.It means at first it will use the old path but after... (4 Replies)
I am going to run the scripts (filetest.sh)
Its run with.....
./filetest.sh
sh filetest.sh
but not run with.....
filetest.sh ( giviing error command not found)
tell me the way how we can do it ? (6 Replies)
HI,
I have to write a unix script and need your help.
in my application where I have to invoke this script a varialble is there where the value comes in a variable . for example variable can be var=ABC
like this there will be any type of value in the vcariable.
there is a unix directory... (2 Replies)
Hi to All,
Please find below details.
file_config.config
export file1_status="SUCCESS"
export file2_status="SUCCESS"
file_one.sh
I am calling another two shell script from these script. I need to pass individual two script status (If it's "FAILED") to file_main.sh.
file_main.sh
I... (2 Replies)
Hi,
Below is starting entry of my script
#!/bin/ksh
Usage()
{
print "Usage: $0 ID OPTION SERVER"
print "<br>Where :"
print "<br>Enter your ID into PARAM1, OPTION in the PARAM2 and SERVER in the PARAM3 field"
print "<br>ID should be a valid ID"
print "<br>OPTION should be either... (2 Replies)
I am from MQ/MB technology. My requirement is to display the queue manger and broker status on daily basis.
If I manually run the script, it works fine and displays output. But when I have scheduled the same using cronjobs it shows only the queue manger status and not the broker status.
Can... (3 Replies)
Assume I want to run a sequence of scripts:
script0001.sh
script0002.sh
script0003.sh
...
script0122.sh
script0123.sh
I only know a little Linux scripting, so the following is the best I can write
for k in $(seq 1 123)
do
./script${k}.sh
done
Of course it doesn't work... (2 Replies)
Could I run 2 python scripts at the same time side by side output on the same line in this same format but with scripts?
from itertools import izip_longest
with open("file1") as textfile1, open("file2") as textfile2:
for x, y in izip_longest(textfile1, textfile2, fillvalue=""):
x =... (4 Replies)
Discussion started by: bigvito19
4 Replies
LEARN ABOUT SUNOS
upsrw
UPSRW(8) NUT Manual UPSRW(8)NAME
upsrw - UPS variable administration tool
SYNOPSIS
upsrw ups
upsrw -h
upsrw -s variable [-u username] [-p password] ups
DESCRIPTION
upsrw allows you to view and change the read/write variables inside your UPS. It sends commands via the server upsd(8) to your driver,
which configures the hardware for you.
The list of variables that allow you to change their values is based on the capabilities of your UPS equipment. Not all models support this
feature. Typically, cheaper hardware does not support any of them. Run upsrw with a UPS identifier to see what will work for you.
OPTIONS -h
Display the help message.
-s variable
Specify the variable to be changed inside the UPS. For unattended mode such as in shell scripts, use the format VAR=VALUE to specify
both the variable and the value, for example:
-s input.transfer.high=129
Without this argument, upsrw will just display the list of the variables and their possible values.
Some variables are strings, and can be set to any value within the length limit. Others are enumerated types and can only be set to one
of those values. Others may be within an allowed range of values. Refer to the list to know what's available in your hardware.
-u username
Set the NUT username for the connection to the server. This is optional, and you will be prompted for this when using the -s option if
you don't specify -u on the command line. NUT usernames are defined in upsd.users(5), and are not linked to system usernames.
-p password
Set the password to authenticate to the server. This is also optional like -u, and you will be prompted for it if necessary.
ups
View or change the settings on this UPS. The format for this option is upsname[@hostname[:port]]. The default hostname is "localhost".
UNATTENDED MODE
If you run this program inside a shell script or similar to set variables, you will need to specify all of the information on the command
line. This means using -s VAR=VALUE, -u and -p. Otherwise it will put up a prompt and your program will hang.
This is not necessary when displaying the list, as the username and password are not required for read-only mode.
DIAGNOSTICS
upsrw can't set variables on your UPS unless you provide a valid username and password. If you get "access denied" errors, make sure that
your upsd.users(5) has an entry for you, and that the username you are using has permissions to SET variables.
HISTORY
This program used to be called upsct2, which was ambiguous and confusing.
SEE ALSO upsd(8), upscmd(8)
Internet resources:
The NUT (Network UPS Tools) home page: http://www.networkupstools.org/
Network UPS Tools 05/24/2012 UPSRW(8)