Sponsored Content
Top Forums Shell Programming and Scripting Remove line based on condition in awk Post 302980307 by Don Cragun on Friday 26th of August 2016 02:27:00 AM
Old 08-26-2016
Note that some alphabetic characters are interpreted as parts of numeric values when awk converts a string to a number. The standards require that exponential notation be recognized (e.g., 1.05E-3) and allows but does not require awk to recognize hexadecimal constants of the forms 0xhexdigits and 0Xhexdigits. And, the standards allow, but do not currently require that the strings inf and infinity (case-insensitive on both) be treated as an infinity and that the string NaN (also case-insensitive) be treated as not-a-number.
This User Gave Thanks to Don Cragun For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to search then remove based on condition

Folks; I'm trying to write a script to scan through a directory tree then for each file it finds, it run a command line tool, then if the results include the word "DONE", it removes the file. In more details; i have a Linux directory tree such as "/opt/grid/1022/store" I'm trying to write a... (6 Replies)
Discussion started by: Katkota
6 Replies

2. Shell Programming and Scripting

awk to print lines based on string match on another line and condition

Hi folks, I have a text file that I need to parse, and I cant figure it out. The source is a report breaking down softwares from various companies with some basic info about them (see source snippet below). Ultimately what I want is an excel sheet with only Adobe and Microsoft software name and... (5 Replies)
Discussion started by: rowie718
5 Replies

3. Shell Programming and Scripting

Remove lines from XML based on condition

Hi, I need to remove some lines from an XML file is the value within a tag is empty. Imagine this scenario, <acd><acdID>2</acdID><logon></logon></acd> <acd><acdID></acdID><logon></logon></acd> <acd><acdID></acdID><logon></logon></acd> <acd><acdID></acdID><logon></logon></acd> I... (3 Replies)
Discussion started by: giles.cardew
3 Replies

4. Shell Programming and Scripting

ksh: how to extract strings from each line based on a condition

Hi , I'm a newbie.Never worked on Unix before. I want a shell script to perform the following: I want to extract strings from each line ,based on the type of line(Nameline,Subline) and output it to another file.Below is a sample format. 2010-12-21 14:00"1"Nameline"Midterm"First Name:Jane ... (4 Replies)
Discussion started by: angie1234
4 Replies

5. Shell Programming and Scripting

Remove duplicate line on condition

Hi Ive been scratching over this for some time with no solution. I have a file like this 1 bla bla 1 2 bla bla 2 4 bla bla 3 5 bla bla 1 6 bla bla 1 I want to remove consecutive occurrences of lines like bla bla 1, but the first column may be different. Any ideasss?? (23 Replies)
Discussion started by: jamie_123
23 Replies

6. Shell Programming and Scripting

Multi line extraction based on condition

Hi I have some data in a file as below ****************************** Class 1A Students absent are : 1. ABC 2. CDE 3. CPE ****************************** Class 2A Students absent are : ****************************** Class 3A Students absent are : (6 Replies)
Discussion started by: reldb
6 Replies

7. Shell Programming and Scripting

Print lines based on line number and specified condition

Hi, I have a file like below. 1,2,3,4,5,6,7,8,9I would like to print or copied to a file based of line count in perl If I gave a condition 1 to 3 then it should iterate over above file and print 1 to 3 and then again 1 to 3 etc. output should be 1,2,3 4,5,6 7,8,9 (10 Replies)
Discussion started by: Anjan1
10 Replies

8. Shell Programming and Scripting

Help with awk color codes based on condition

HI i have two files say test and test1 Test.txt Code: Lun01 2TB 1.99TB 99.6% Lun02 2TB 1.99TB 99.5% Lun03 2TB 1.99TB 99.5% Lun04 2TB 1.55TB 89.6% Code: Test1.txt Lun01 2TB 1.99TB 89.5% Lun02 2TB 1.99TB 99.5% Lun03 2TB 1.99TB 99.5% Requirement is to compare... (6 Replies)
Discussion started by: venkitesh
6 Replies

9. Shell Programming and Scripting

awk to reformat lines based on condition

The awk below uses the tab-delimeted fileand reformats each line based on one of three conditions (rules). The 3 rules are for deletion (lines in blue), snv (line in red), and insertion (lines in green). I have included all possible combinations of lines from my actual data, which is very large.... (0 Replies)
Discussion started by: cmccabe
0 Replies

10. UNIX for Beginners Questions & Answers

awk to add +1 to value based on condition in input

In the awk below I am trying to add a | that will adjust $2 in the ouput by adding +1 if the original value from file that was used in $3 had a - in it. Line 3 of file is an example of this. In my current awk I just subtract one but I am not sure how to only apply this to those values without a -.... (5 Replies)
Discussion started by: cmccabe
5 Replies
All times are GMT -4. The time now is 02:55 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy