Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Getting substring with awk

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Getting substring with awk
# 1  
Old 03-16-2010
Getting substring with awk
Hi Team,
How to get the last 3 characters of a String irrespective of their length using awk?

Thanks
Kinny
# 2  
Old 03-16-2010
An example for the first field:

Code:
awk '{print substr($1,length($1)-2)}'

# 3  
Old 03-16-2010
Code:
$string="hello"
sed 's/.*\(.\{3\}\)$/\1/' <<< $string

You can use the above sed command also.
This will print "llo".
Last edited by thillai_selvan; 03-16-2010 at 06:54 AM..
# 4  
Old 03-16-2010
Code:
string="welcome"
echo ${string:(-3)}

The output is
ome
# 5  
Old 03-16-2010
That worked like a charm. Thanks a Ton
# 6  
Old 03-16-2010
Code:
awk -F "" '{print $(NF-2)$(NF-1)$NF}'

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

AWK Substring without cutting off word

Can someone help me to make this code without cutting off words ni the string? awk '{for(i=1;i<length;i+=100) print substr($0,i,100)}' Thank you! (4 Replies)
Discussion started by: sanantonio7777
4 Replies

2. Shell Programming and Scripting

Extract a substring using SED/AWK

Hi All, I have a log file in which name and version of applications are coming in the following format name It may look like following, based on the name of the application and version: XYZ OR xyz OR XyZ OR xyz I want to separate out the name and version and store them into variables.... (4 Replies)
Discussion started by: bhaskar_m
4 Replies

3. UNIX for Advanced & Expert Users

awk if/substring/append help

Hi All, I need some help with an awk command: What I'm trying to do is append "MYGROUP: " to text with the substring "AT_" the input file follows this format: AT_xxxxxx Name1 Name2 AT_xxxxxx NameA NameB I want the output to be: MYGROUP: AT_xxxxx Name1 Name2 MYGROUP:... (2 Replies)
Discussion started by: bikecraft
2 Replies

4. Shell Programming and Scripting

AWK: Substring search

Hi I have a table like this I want to know how many times the string in 2nd column appears in the first column as substring. For example the first string of 2nd column "cgt" occurs 3 times in the 1st column and "acg" one time. So my desired output is THank you very much in advance:) (14 Replies)
Discussion started by: polsum
14 Replies

5. Shell Programming and Scripting

awk with multiple regex and substring

Hi Experts, I have a file on which i want to print the line which should match following criterias. Line should not start with 0 or 9 and Line should start with 1 and ( 576th character should not be 1 or 2 or 576-580 postion should not be NIPPF or CDIPB or 576-581 postion should... (2 Replies)
Discussion started by: millan
2 Replies

6. Shell Programming and Scripting

KSH: A PROBLEM awk SUBSTRING

Hi Gurus, I am working with a korn shell script to simplify some operations of creation file of spool for a Bulk-Copy. Thi is my code: In a for cycle: gzcat ${file} |awk '{ print substr($0,1,5)";"substr($0,108,122)";"substr($0,124,131)";"substr($0,139,152)";"substr($0,154,163)";"}' >>... (6 Replies)
Discussion started by: GERMANICO
6 Replies

7. Shell Programming and Scripting

Substring using cut/awk/sed

Hi Gurus,I have a seemingly simple problem but struggling with it.It is as follows : I/p string - ABCDEFGHIJ20100909.txt desired o/p - AB,DEF,20100909,ABCDEFGHIJ20100909.txt How to achieve it ?Thanks in advance. Please use code tags, thank you (20 Replies)
Discussion started by: sumoka
20 Replies

8. Shell Programming and Scripting

Substring using sed or awk

I am trying to get a substring from a string stored in a variable. I tried sed with a bit help from this forum, but not successful. Here is my problem. My string is: "REPLYFILE=myfile.txt" And I need: myfile.txt (everything after the = symbol). My string is: "myfile.txt.gz.20091120.enc... (5 Replies)
Discussion started by: jamjam10k
5 Replies

9. Shell Programming and Scripting

Awk substring falls between two values

Hi guys, hopefully you can give me a hand with this before my monitor has a nasty accident! :mad: I have the following line in a script: awk 'int(substr($1,2,2))>'06' && int(substr($1,2,2))<'08' ' ANYOLDFILE.log ... which when ran against this data file: ... correctly... (3 Replies)
Discussion started by: dlam
3 Replies

10. UNIX for Dummies Questions & Answers

substring using AWK

can we do substring fuctionality using AWK say I have string "sandeep" can i pick up only portion "nde" from it. Thanks and Regards Sandeep Ranade (3 Replies)
Discussion started by: mahabunta
3 Replies
Login or Register to Ask a Question