Hello All,
It has been a loooooooooooong time since I had last used sed but decided to use it for a simple task I have .
My goal is to use sed to read variables from a flat file then use those same variables in order to make some subsitutions. However what I am finding is that when the... (1 Reply)
I always kind of wondered this but I have a variable that I want to use in a search and replace. Basically I want to search a file for the string in my variable and replace it with something fixed but I'm unsure of the variable rule in sed. Here's generally what I have:
sed 's/$name/newname/g'... (15 Replies)
Hi guys,
I'm trying to loop through a number of files that is set by whatever is in a field.
eg.
The idea is to split FILELIST down into fields, it could contain 1 - 999 fields and it's bar delimited.
I thought simple, count the number of fields in the field and then loop... (1 Reply)
good afternoon forums.
i have a problem that ive been trying to work out all morning and cant seem to get my head around it.
what i have in my script is individual letters saved in different variables. so if the word unix was saved then 'u' would be stored in the variable 'wvar1' 'n' in 'wvar2'... (7 Replies)
I'm an experienced programmer that is new to shell scripting. I'm putting together a shell script that erases all files of a certain age. These files are in directories provided on lines of a file that is provided via command line argument and takes any errors(permissions, etc) and emails them to a... (3 Replies)
hi, i need some help, the situation is this
1-file of variable enviroments
DIR1=/tmp
DIR2=otherdir/mydir
2-file of list of files (all the names references whic variables of first point)
${DIR1}/${DIR2}/onefile
Well now i create a shell script whic... (5 Replies)
I'm writing a script that'll send a time-stamp to my backup server. I create a file with the name of the current date, send it to my server with scp and rm the file from the local computer.
Individually these commands work fine and with a set name the expect scripts also work fine. The problem... (0 Replies)
I have a simple shell script to read create a mysql database as a particular user. Right now, I have the password set as a variable to make sure someone does not mistype the password. I want to take the hard coded password out of the file and make the user input the password twice to make they... (2 Replies)
Hi there
As part of a larger script I need to put the output of an ls into a variable which has an incremental number.
ie
nathan@nathan-Vostro-1700:~$ eval 'proc'$val='`ls -ld /proc/9467`'
nathan@nathan-Vostro-1700:~$ echo $proc0
dr-xr-xr-x 8 nathan nathan 0 2012-05-02 09:21... (3 Replies)
To all geeks,
What I want to achieve:
1. Accept two filenames from user and store the filenames in two variables (FILE1 and FILE2)
2. Check if files exisits. If doesn't, then exit
3. If files exist, look for a particular string in both files
4. If the string exists, then change the... (8 Replies)
Discussion started by: Deepak Tulsani
8 Replies
LEARN ABOUT POSIX
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)