Help with text processing


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Help with text processing
# 8  
Old 02-25-2015
Thank you for sharing your code. (In the future, please use CODE tags to surround sample input, output, and code.)

Note that the normal way to specify the contents of an input line in an awk script is $0. $n happens to work here because n hasn't been defined, and in awk references to undefined variables yield a 0 (when a number is needed) or an empty string (when a string is needed). When other readers may be reading your code, it is usually better to use $0 so they don't have to search your script to find out how n is defined.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Text processing in UNIX

Greetings! I have a text file that I am trying to process to get the desired output but looks like I will need the community help. Input File: a|x|london|consumer|consumer1|country||D|consumer|consumer1|country||1 a|x|paris|consumer|consumer2|country||D|consumer1|consumer2|country||2... (3 Replies)
Discussion started by: bikerboy
3 Replies

2. Shell Programming and Scripting

awk for text processing

Hi,my file is in this format ", \"symbol\": \"Rbm38\" } ]" I want to convert it to a more user readable format _id pubmed text symbol 67196 18667844 Overexpression of UBE2T in NIH3T3 cells significantly promoted colony formation in mouse cell cultures Ube2t 56190 21764855 ... (3 Replies)
Discussion started by: biofreek
3 Replies

3. Shell Programming and Scripting

Text processing

Hi, Need an advise on $ cat test.txt START field1 field2 field3 field4 field5 field6 END 12345|6|1|2|3|4|111|119 67890|6|1|3|8|9|112|000 $ (4 Replies)
Discussion started by: getmilo
4 Replies

4. Shell Programming and Scripting

Text processing using awk

I dispose of two tab-delimited files (the first column is the primary key): File 1 (there are multiple rows sharing the same key, I cannot merge them) A 28,29,30,31 A 17,18,19 B 11,13,14,15 B 8,9File 2 (there is one only row beginning with a given key) A 2,8,18,30,31 B ... (3 Replies)
Discussion started by: dovah
3 Replies

5. Programming

awk processing / Shell Script Processing to remove columns text file

Hello, I extracted a list of files in a directory with the command ls . However this is not my computer, so the ls functionality has been revamped so that it gives the filesizes in front like this : This is the output of ls command : I stored the output in a file filelist 1.1M... (5 Replies)
Discussion started by: ajayram
5 Replies

6. Shell Programming and Scripting

Text processing doubt

How to print nth column of a pattern/file without using awk,cut commands? (1 Reply)
Discussion started by: rajkumarin
1 Replies

7. Shell Programming and Scripting

Awk text processing

Hi Very much appreciate if somebody could give me a clue .. I undestand that it could be done with awk but have a limited experience. I have the following text in the file 1 909 YES NO 2 500 No NO . ... 1 ... (8 Replies)
Discussion started by: zam
8 Replies

8. Shell Programming and Scripting

seeking help in text processing

Hi, I am a newbie in shell scripting. I want to get an expert help in solving a text processing issue. The issue I am facing is that, in the below log file contents I need to extract each block of lines (it could be a single line also) based on some regular expression and store it in... (8 Replies)
Discussion started by: Alecs
8 Replies

9. UNIX for Dummies Questions & Answers

text file processing

Hello! There is a text file, that contains hierarchy of menues, like: Aaaaa->Bbbbb Aaaaa->Cccc Aaaaa-> {spaces} Ddddd (it means that the full path is Aaaaa->Cccc->Ddddd ) Aaaaa-> {more spaces} Eeeee (it means that the full path is Aaaaa->Cccc->Ddddd->Eeeee ) Fffffff->Ggggg... (1 Reply)
Discussion started by: alias47
1 Replies

10. UNIX for Dummies Questions & Answers

Processing a text file

A file contains one name per line, such as: john doe jack bruce nancy smith sam riley When I 'cat' the file, the white space is treated as a new line. For example list=`(cat /path/to/file.txt)` for items in $list do echo $items done I get: john doe (1 Reply)
Discussion started by: TheCrunge
1 Replies
Login or Register to Ask a Question
FMT(1)							    BSD General Commands Manual 						    FMT(1)

NAME
fmt -- simple text formatter SYNOPSIS
fmt [-Cr] [goal [maximum]] [name ...] fmt [-Cr] [-g goal] [-m maximum] [name ...] DESCRIPTION
fmt is a simple text formatter which reads the concatenation of input files (or standard input if none are given) and produces on standard output a version of its input with lines as close to the goal length as possible without exceeding the maximum. The goal length defaults to 65 and the maximum to 75. The spacing at the beginning of the input lines is preserved in the output, as are blank lines and interword spac- ing. In non raw mode, lines that look like mail headers or begin with a period are not formatted. -C instructs fmt to center the text. -g goal New way to set the goal length. -m maximum New way to set the maximum length. -r Raw mode; formats all lines and does not make exceptions for lines that start with a period or look like mail headers. fmt is meant to format mail messages prior to sending, but may also be useful for other simple tasks. For instance, within visual mode of the ex(1) editor (e.g., vi(1)) the command !}fmt will reformat a paragraph, evening the lines. SEE ALSO
mail(1), nroff(1) HISTORY
The fmt command appeared in 3BSD. BUGS
The program was designed to be simple and fast - for more complex operations, the standard text processors are likely to be more appropriate. BSD
May 29, 2007 BSD