Sponsored Content
Top Forums Shell Programming and Scripting Updating variables using sed or awk Post 302953178 by Corona688 on Tuesday 25th of August 2015 03:52:03 PM
Old 08-25-2015
Quote:
The file contains more than 50 variables. I want to update few of them based on the variable name and assign them new values. I just gave an example in my post that happened to be one below the other. The update of the variable value needs to happen based on the variable name that I choose in my script.
The arguments don't contain any variable names at all. How should the script decide what names to update?

Last edited by Corona688; 08-25-2015 at 05:00 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Manipulating awk $variables using sed?

I have been searching around the forums here trying to find a solution to my problem but not getting anywhere but closer to baldness. I have a 20 column pipe "|" seperated text file. The 14th variable doesnt always exist, but will have the format of YYYYMM or YYYY if it does. I need to take... (2 Replies)
Discussion started by: r0sc0
2 Replies

2. Shell Programming and Scripting

using sed on bash variables (or maybe awk?)

Hi all- I've been fooling with this for a few days, but I'm rather new at this... I have a bash variable containing a long string of various characters, for instance: JUNK=this that the other xyz 1234 56 789 I don't know what "xyz" actually is, but I know that: START=he other and ... (2 Replies)
Discussion started by: rev66
2 Replies

3. Shell Programming and Scripting

Accessing Shell Variables in awk or sed

Hello, I wonder if it is possible to pass and use variables from shell environment into sed or awk. I am trying to achieve something similar to the following using sed or awk: var=some_regular_expression grep "$var" filename # Will extract lines from filename The following code,... (3 Replies)
Discussion started by: nasersh
3 Replies

4. Shell Programming and Scripting

awk updating one file with another, comparing, updating

Hello, I read and search through this wonderful forum and tried different approaches but it seems I lack some knowledge and neurones ^^ Here is what I'm trying to achieve : file1: test filea 3495; test fileb 4578; test filec 7689; test filey 9978; test filez 12300; file2: test filea... (11 Replies)
Discussion started by: mecano
11 Replies

5. Shell Programming and Scripting

Using variables within awk/sed commands

Can I use my own variables within awk and sed for example: I've written a while loop with a counter $i and I want to use the value of $i within sed and awk to edit certain lines of text within a data file. I want to use : sed '1s/$/texthere/g' data.csv Like this: sed '$is/$/$age/g' data.csv... (5 Replies)
Discussion started by: mustaine85
5 Replies

6. Shell Programming and Scripting

Updating a line in a large csv file, with sed/awk?

I have an extremely large csv file that I need to search the second field, and upon matches update the last field... I can pull the line with awk.. but apparently you cant use awk to directly update the file? So im curious if I can use sed to do this... The good news is the field I want to... (5 Replies)
Discussion started by: trey85stang
5 Replies

7. UNIX for Dummies Questions & Answers

Updating environment variables

ok, this definitely falls in the n00b category... I'm trying to upgrade Java on my server and just need to update the PATH, CLASSPATH, and JAVA_HOME environment variables. This is what they currently are:... (4 Replies)
Discussion started by: jtennent
4 Replies

8. Shell Programming and Scripting

print pattern between two variables awk sed

I am trying to print text between two variables in a file I have tried the following things but none seem to work: awk ' /'$a'/ {flag=1;next} /'$b'/{flag=0} flag { print }' file and also sed "/$a/,/$b/p" file But none seem to work Any Ideas? Thanks in Advance (5 Replies)
Discussion started by: forumbaba
5 Replies

9. Shell Programming and Scripting

Variables into SED or AWK and multiple commands

Hello I am hoping you may help. I am not sure how to go about this exactly, I know the tools but not sure how to make them work together. I have two SED commands that I would like to run in a shell script. I would like to take the manual input of a user (types in when prompted) to be used... (4 Replies)
Discussion started by: lostincashe
4 Replies

10. UNIX for Dummies Questions & Answers

Use of Variables in a sed/awk script

Hi, After looking at the differents post on this forum, I am convinced that I will benefit from the experience of advanced Unix user on some script I have already done for an aeronautical study. Here is one of them : Step 1 : sed -e "s/??/00/g" Base_Awk.txt > Awk_Cut_00.txt4; sed... (11 Replies)
Discussion started by: Marc_Camoc
11 Replies
PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME
paps - UTF-8 to PostScript converter using Pango SYNOPSIS
paps [options] files... DESCRIPTION
paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves through the pango ft2 backend. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. --landscape Landscape output. Default is portrait. --columns=cl Number of columns output. Default is 1. --font=desc Set the font description. Default is Monospace 12. --rtl Do rtl layout. --paper ps Choose paper size. Known paper sizes are legal, letter, a4. Default is A4. --bottom-margin=bm Set bottom margin in postscript points (1/72 inch). Default is 36. --top-margin=tm Set top margin. Default is 36. --left-margin=lm Set left margin. Default is 36. --right-margin=rm Set right margin. Default is 36. --help Show summary of options. --header Draw page header for each page. --markup Interpret the text as pango markup. --encoding=ENCODING Assume the documentation encoding is ENCODING. --lpi Set the lines per inch. This determines the line spacing. --cpi Set the characters per inch. This is an alternative method of specifying the font size. --stretch-chars Indicates that characters should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops behaviour. AUTHOR
paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>. This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others). April 17, 2006 PAPS(1)
All times are GMT -4. The time now is 09:38 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy