Sponsored Content
Top Forums Shell Programming and Scripting Grab text after pattern and replace Post 302959544 by RavinderSingh13 on Wednesday 4th of November 2015 09:25:36 AM
Old 11-04-2015
Hello gpk_newbie,

Following may help you to understand the command.
Code:
awk -F,                           ########### Making comma(,) as a field seprator.
'{gsub(/..../,"&-",$4);           ########### using global subtitutaion to change any 4 chars/digits etc to their value with - by using (&-) in $4 as per your request
sub(/\-$/,X,$4);}                 ########### When we use global subtitutaion then it will place - at last of the string then I am removing it by sub which means only single time subtitutaion, That's the difference between global subtitutaion and single substitutaion in awk.
1' OFS=,  Input_file              ########### awk works on condition and then action, if condition is TRUE following action mentioned in it will be performed. So here I am making comndition TRUE by mentioning 1 and no action mentoined so awk will take default action which is print so it will print the complete line then.

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Search file for pattern and grab some lines before pattern

I want to search a file for a string and then if the string is found I need the line that the string is on - but also the previous two lines from the file (that the pattern will not be found in) This is on solaris Can you help? (2 Replies)
Discussion started by: frustrated1
2 Replies

2. AIX

Pattern to replace ^M and ^Y in a 4.2 AIX text file

I have files on my AIX 4.2 client system where I need to do the following replacements below but have no clue how ? They are control characters (linefeed, chariage return, ...). First, replace "^M^Y^M" with ^char_for_end_of_line Then replace "^M" with " " Trim all left spaces In VI, my... (7 Replies)
Discussion started by: Browser_ice
7 Replies

3. Shell Programming and Scripting

pattern replace inside text file using sed

Hi, I have a situation where I want to replace some occurrences of ".jsp" into ".html" inside a text file. For Example: If a pattern found like <a href="http://www.mysite.com/mypage.jsp"> it should be retained. But if a pattern found like <a href="../mypage.jsp"> it should be changed to... (4 Replies)
Discussion started by: meharo
4 Replies

4. Shell Programming and Scripting

Replace Text Based On Pattern

Hi I'm trying to replace text in a file based upon a pattern. The pattern I'm looking for is: <styleURL>#style0002</styleURL> <name>#######6105#######</name>The # are seven alphanumeric characters before and after 6105. I need it to replace that with this recursively: ... (4 Replies)
Discussion started by: Grizzly
4 Replies

5. Shell Programming and Scripting

find pattern and replace the text before it

i am editing a big log file with the following pattern: Date: xxxx Updated: name Some log file text here Date: eee Updated: ny Some log file text here Basically i want to remove all the text in a line before the "Updated" pattern. I sill want to print the other... (4 Replies)
Discussion started by: balan1983a
4 Replies

6. Shell Programming and Scripting

sed help, Find a pattern, replace it with same text minus leading 0

HI Folks, I'm looking for a solution for this issue. I want to find the Pattern 0/ and replace it with /. I'm just removing the leading zero. I can find the Pattern but it always puts literal value as a replacement. What am I missing?? sed -e s/0\//\//g File1 > File2 edit by... (3 Replies)
Discussion started by: SirHenry1
3 Replies

7. Shell Programming and Scripting

Search and Replace a text if the line contains a pattern

My text file looks like below . . . abcdefghi jklmnop $Bad_ptrq_GTS=rcrd_ip.txt $Bad_abcd_REJ=rcrd_op.txt ghijklm $Bad_abcd_TYHS=rcrd_op.txt abcgd abcdefghi jklmnop $Bad_ptrq_GTS=rcrd_ip.txt (2 Replies)
Discussion started by: machomaddy
2 Replies

8. Shell Programming and Scripting

Pattern replace from a text file using sed

I have a sample text format as given below <Text Text_ID="10155645315851111_10155645333076543" From="460350337461111" Created="2011-03-16T17:05:37+0000" use_count="123">This is the first text</Text> <Text Text_ID="10155645315851111_10155645317023456" From="1626711840902323"... (3 Replies)
Discussion started by: my_Perl
3 Replies

9. Shell Programming and Scripting

Grab text after pattern on the same line

data: 8iW5iPACIb5fafafEU24f3EOOjpakx6VwxBX+NafafxJMWX8iW5iPACIb5fafafEU24f3EOOjpakx6VwxBX+NafafxJMWX8iW5i PACIb5fafafEU24f3EOOjpakx6VwxBX+NafafxJMWX8iW5iPACIb5fafafEU24f3EOOjpakx6VwxBX+ 8nwR15UzfeZafaf2bGr8akx6VwxBX+NafafxJMWX8iW5iPACIb5fafafEU24f3EOOjp lVpOoMLXJ ... (19 Replies)
Discussion started by: SkySmart
19 Replies

10. UNIX for Beginners Questions & Answers

Replace pattern in text

hi unix expert is there any command in linux to repace a pattern in the text to another pattern? many thanks samad (2 Replies)
Discussion started by: abdossamad2003
2 Replies
unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME
unix2dos - UNIX to DOS text file format converter SYNOPSYS
unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...] Options: [-hkqV] [--help] [--keepdate] [--quiet] [--version] DESCRIPTION
This manual page documents unix2dos, the program that converts text files in UNIX format to DOS format. OPTIONS
The following options are available: -h --help Print online help. -k --keepdate Keep the date stamp of output file same as input file. -q --quiet Quiet mode. Suppress all warning and messages. -V --version Prints version information. -c --convmode convmode Sets conversion mode. Simulates unix2dos under SunOS. -o --oldfile file ... Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used. -n --newfile infile outfile ... New file mode. Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be used or you WILL lost your files. EXAMPLES
Get input from stdin and write output to stdout. unix2dos Convert and replace a.txt. Convert and replace b.txt. unix2dos a.txt b.txt unix2dos -o a.txt b.txt Convert and replace a.txt in ASCII conversion mode. Convert and replace b.txt in ISO conversion mode. unix2dos a.txt -c iso b.txt unix2dos -c ascii a.txt -c iso b.txt Convert and replace a.txt while keeping original date stamp. unix2dos -k a.txt unix2dos -k -o a.txt Convert a.txt and write to e.txt. unix2dos -n a.txt e.txt Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt. unix2dos -k -n a.txt e.txt Convert and replace a.txt. Convert b.txt and write to e.txt. unix2dos a.txt -n b.txt e.txt unix2dos -o a.txt -n b.txt e.txt Convert c.txt and write to e.txt. Convert and replace a.txt. Convert and replace b.txt. Convert d.txt and write to f.txt. unix2dos -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt DIAGNOSTICS
BUGS
The program does not work properly under MSDOS in stdio processing mode. If you know why is that so, please tell me. AUTHOR
Benjamin Lin - ( blin@socs.uts.edu.au ) MISCELLANY
Tested environment: Linux 1.2.0 with GNU C 2.5.8 SunOS 4.1.3 with GNU C 2.6.3 MS-DOS 6.20 with Borland C++ 4.02 Suggestions and bug reports are welcome. SEE ALSO
dos2unix(1) 1995.03.31 unix2dos v2.2 unix2dos(1)
All times are GMT -4. The time now is 07:32 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy