Sponsored Content
Top Forums Shell Programming and Scripting Preserving values with for loop for later use Post 302740081 by Corona688 on Wednesday 5th of December 2012 01:19:06 PM
Old 12-05-2012
I would put the problem code in a subshell instead, to prevent its changes from affecting the rest of the shell.

Code:
#!/bin/sh

VAR1=asdf
VAR2=qwertyuipo

(
        VAR1=slartibartfast
        VAR2=lkjlkdsfh

        echo "some stuff"
)

echo "Variables changed inside ( ) do not change outside"
echo "VAR1 is still $VAR1"

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

while read loop preserving leading whitespace

Hi all, I've been trying to get this to work for ages to no avail. I've searched this site and googled but cannot find a satisfactory answer. I've got a while loop, like this while read line do echo "$line" done < file_name Now, my problem is that most of the lines in the file... (3 Replies)
Discussion started by: zazzybob
3 Replies

2. Shell Programming and Scripting

getting values from variable in a loop

I have a set of variables: f1="./someFolder" . . f10="./someOtherFolder" And I'm trying to use the following loop for (( i = 0; i <= 10; i++ )) do temp=f$i done I'm trying the get the values from my set of variable to make directories, but I can't seem the get those value... (3 Replies)
Discussion started by: kriuz
3 Replies

3. Shell Programming and Scripting

How to use array values after the loop.

- I m retreving values from database and wish to use those values later in my shell script. I m placing these values in an array da_data but outside loop array is empty.Problem is its treating array as local inside loop hence array is empty outside loop. Plz go through the script and suggest how... (1 Reply)
Discussion started by: Devesh5683
1 Replies

4. Shell Programming and Scripting

adding values with a loop

Hi there, I am checking disk spaced used on a box # df -k | grep dsk | awk {'print $3'} 2055463 20165785 18310202 32274406 I want to somehow add them up but am no quite sure how to do this in a loop. ...i.e for n in 'df -k | grep dsk | awk {'print $3}' do <some adding... (1 Reply)
Discussion started by: hcclnoodles
1 Replies

5. Shell Programming and Scripting

Preserving whitespace in a for loop

I obviously haven't learned my lesson with shell and whitespace. find /path/to/some/where/ -name "*.pdf" | awk '{print $5}'| uniq -d results: some Corporation other Corporate junk firmx Works fine from cmdline but the whitespace turns into another FS in a for loop. for... (7 Replies)
Discussion started by: s_becker
7 Replies

6. UNIX for Dummies Questions & Answers

For loop returning more values

Hi All, Thanks all of you for the help you provide to me. Well, I have one more problem, where I am trying to pull file system information in the loop and display the filesystem percentege. I am using following code to achive this, nut it's giving the weired output. My file system is ... (1 Reply)
Discussion started by: alok.behria
1 Replies

7. Shell Programming and Scripting

Array Variable being Assigned Values in Loop, But Gone when Loop Completes???

Hello All, Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....? I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping through a string containing some of these "Illegal Characters". Now... (5 Replies)
Discussion started by: mrm5102
5 Replies

8. Shell Programming and Scripting

While loop to read values

Hi Everyone, I am currently tasked with some reporting on various Unix based OSes. I have a script deployed that runs and grabs the information I am looking for, and has a bit of logic to output the desired result into a text file. Example of my text file: multiUsers=yes... (1 Reply)
Discussion started by: Zaphod_B
1 Replies

9. Shell Programming and Scripting

awk loop using array:wish to store array values from loop for use outside loop

Here's my code: awk -F '' 'NR==FNR { if (/time/ && $5>10) A=$2" "$3":"$4":"($5-01) else if (/time/ && $5<01) A=$2" "$3":"$4-01":"(59-$5) else if (/time/ && $5<=10) A=$2" "$3":"$4":0"($5-01) else if (/close/) { B=0 n1=n2; ... (2 Replies)
Discussion started by: klane
2 Replies

10. Shell Programming and Scripting

Variable values within for loop

Hi All I am trying to fetch the size of three files into three separate variables within a for loop and am doing something like this: for i in ATT1 ATT2 ATT3 do size_$i=`ls -ltr $i | awk '{print $5}'` echo ${size_$i} done but am getting the below error: ksh: size_ATT1=522: not... (3 Replies)
Discussion started by: swasid
3 Replies
INN::Config(3pm)					    InterNetNews Documentation						  INN::Config(3pm)

NAME
INN::Config - Export all the variables an INN Perl script might need DESCRIPTION
This Perl module sets up any and all the variables that an INN Perl script might need. More particularly, it allows to use inn.conf variables: they are all provided by innconfval, as well as the version of INN (in the variable $INN::Config::VERSION for its short number form, on in $INN::Config::version for its complete form). Other useful variables are also provided (directories, files, programs, masks, parameters). The complete list can be obtained with the following script that prints them out: use lib '<pathnews>/lib/perl'; use INN::Config; use Data::Dumper; my ($varname, $value); foreach my $var (@INN::Config::EXPORT_OK) { if ($var =~ /^$(.*)$/) { $varname = "INN::Config::$1"; $value = Dumper($$varname); $value =~ s/^$VAR1 = //; print "$$varname = $value"; } elsif ($var =~ /^@(.*)$/) { $varname = "INN::Config::$1"; $value = Dumper(@$varname); $value =~ s/^$VAR1 = //; print "@$varname = $value"; } } A local Perl script named innshellvars.pl.local in pathetc will be loaded, if present and executable, at the end of the run of this module. A typical use is to add or override variables. You only have to declare the module at the beginning of them: use lib '<pathnews>/lib/perl'; use INN::Config; Then, you can for instance use: print $INN::Config::localmaxartsize; to print the value of localmaxartsize as it is set in inn.conf. You can also specify a version when you import the module. If you write: use INN::Config 2.5.0; only versions of INN superior to 2.5.0 will be able to run the Perl script. It is also possible to import the variables directly in your namespace if you specify what you want to import: use INN::Config qw($localmaxartsize $pathbin); Note that a legacy innshellvars.pl is also provided in pathnews/lib for compatibility reasons with old Perl scripts not shipped with INN. It was used by versions of INN anterior to 2.5.0. The corresponding scripts for Shell and Tcl are, however, still in use: innshellvars and innshellvars.tcl. They offer the same capabilities as this module. HISTORY
innshellvars.pl was written by James Brister <brister@vix.com> for InterNetNews in 1996. It was converted to the INN::Config Perl module by Julien Elie in 2007. $Id: Config.pm.in 9311 2011-08-06 20:18:42Z iulius $ SEE ALSO
inn.conf(5), innconfval(1), perl(1). INN 2.5.3 2011-08-22 INN::Config(3pm)
All times are GMT -4. The time now is 06:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy