Sponsored Content
Full Discussion: Using awk to split a string
Top Forums Shell Programming and Scripting Using awk to split a string Post 302755023 by Yoda on Friday 11th of January 2013 03:59:00 PM
Old 01-11-2013
In this pattern we are escaping open round bracket ( and close round bracket ) because these meta-characters have special meaning.
  • / Opening pattern
  • \( Escaping (
  • | Represents OR
  • \( Escaping )
  • | Represents OR
  • : No need to escape this sign.
  • / Closing pattern
I hope you understood.
This User Gave Thanks to Yoda For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

split a string

Hi I have a script that loops though lines of a file and reads each line in to a variable ($LINE). I want to look at the line and split it into it's constituent parts. e.g. a line might be "This is a string" I want to then have variables set to each element thus: A=This B=is C=a... (3 Replies)
Discussion started by: gazingdown
3 Replies

2. UNIX for Dummies Questions & Answers

Split a file with no pattern -- Split, Csplit, Awk

I have gone through all the threads in the forum and tested out different things. I am trying to split a 3GB file into multiple files. Some files are even larger than this. For example: split -l 3000000 filename.txt This is very slow and it splits the file with 3 million records in each... (10 Replies)
Discussion started by: madhunk
10 Replies

3. Shell Programming and Scripting

Split A String

Hi, I am new to scripting and need help splitting a string using space as the delimiter. How can I do that? I want the result to be stored in an Array. I tried using set -A arr $(echo $FILE) echo $arr The result of the above was ''. Thanks. (2 Replies)
Discussion started by: newbie187
2 Replies

4. Shell Programming and Scripting

split the string

I need to split the string msu1_2 It should be generic for any string of the form msu<digits>_<digits> so that i get $X =1 and $Y = 2 Please help Thanks (5 Replies)
Discussion started by: asth
5 Replies

5. Shell Programming and Scripting

awk: split a file using a string problems

Hi, if i use this code awk '/String/{n++}{print > f n}' f=file input I get "input" splited this way file1 String 1515 1354 2356 file 2 String 4531 0345 5345 (3 Replies)
Discussion started by: aloctavodia
3 Replies

6. Shell Programming and Scripting

awk to split string

Hello Friends, Im trying to split a string. When i use first method of awk like below i have an error: method1 (I specified the FS as ":" so is this wrong?) servert1{root}>awk -f split.txt awk: syntax error near line 2 awk: bailing out near line 2 split.txt:... (5 Replies)
Discussion started by: EAGL€
5 Replies

7. Shell Programming and Scripting

split string

Hi I am facing a problem in spitting a string. Here is the string -------------------- subject1=10;subject2=30;subject3=40;subjectcode=10001;... Now, I want only marks not the subject code. (there can be 'n' subjects) ie. 10 30 40 My doubt ---------- How do I... (5 Replies)
Discussion started by: jionnet
5 Replies

8. Shell Programming and Scripting

awk to split one field and print the last two fields within the split part.

Hello; I have a file consists of 4 columns separated by tab. The problem is the third fields. Some of the them are very long but can be split by the vertical bar "|". Also some of them do not contain the string "UniProt", but I could ignore it at this moment, and sort the file afterwards. Here is... (5 Replies)
Discussion started by: yifangt
5 Replies

9. Shell Programming and Scripting

sed or awk command to replace a string pattern with another string based on position of this string

here is what i want to achieve... consider a file contains below contents. the file size is large about 60mb cat dump.sql INSERT INTO `table1` (`id`, `action`, `date`, `descrip`, `lastModified`) VALUES (1,'Change','2011-05-05 00:00:00','Account Updated','2012-02-10... (10 Replies)
Discussion started by: vivek d r
10 Replies

10. Shell Programming and Scripting

Need HELP with AWK split. Need to check for "special characters" in string before splitting the file

Hi Experts. I'm stuck with the below AWK code where i'm trying to move the records containing any special characters in the last field to a bad file. awk -F, '{if ($NF ~ /^|^/) print >"goodfile";else print >"badfile"}' filename sample data 1,abc,def,1234,A * 2,bed,dec,342,* A ... (6 Replies)
Discussion started by: shell_boy23
6 Replies
WILDMAT(3)						     Library Functions Manual							WILDMAT(3)

NAME
wildmat - perform shell-style wildcard matching SYNOPSIS
int wildmat(text, pattern) char *text; char *pattern; DESCRIPTION
Wildmat is part of libinn (3). Wildmat compares the text against the pattern and returns non-zero if the pattern matches the text. The pattern is interpreted according to rules similar to shell filename wildcards, and not as a full regular expression such as those handled by the grep(1) family of programs or the regex(3) or regexp(3) set of routines. The pattern is interpreted as follows: x Turns off the special meaning of x and matches it directly; this is used mostly before a question mark or asterisk, and is not spe- cial inside square brackets. ? Matches any single character. * Matches any sequence of zero or more characters. [x...y] Matches any single character specified by the set x...y. A minus sign may be used to indicate a range of characters. That is, [0-5abc] is a shorthand for [012345abc]. More than one range may appear inside a character set; [0-9a-zA-Z._] matches almost all of the legal characters for a host name. The close bracket, ], may be used if it is the first character in the set. The minus sign, -, may be used if it is either the first or last character in the set. [^x...y] This matches any character not in the set x...y, which is interpreted as described above. For example, [^]-] matches any character other than a close bracket or minus sign. HISTORY
Written by Rich $alz <rsalz@uunet.uu.net> in 1986, and posted to Usenet several times since then, most notably in comp.sources.misc in March, 1991. Lars Mathiesen <thorinn@diku.dk> enhanced the multi-asterisk failure mode in early 1991. Rich and Lars increased the efficiency of star patterns and reposted it to comp.sources.misc in April, 1991. Robert Elz <kre@munnari.oz.au> added minus sign and close bracket handling in June, 1991. This is revision 1.10, dated 1992/04/03. SEE ALSO
grep(1), regex(3), regexp(3). WILDMAT(3)
All times are GMT -4. The time now is 12:59 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy