Get character position within variable

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Get character position within variable
# 1  
Old 07-29-2011
Get character position within variable

Hi all

let's say i have a file named 1234_v2_abcd
i need to find the position of the character located after _v, in above case this would be character number 2
the count of the characters before _v can change, but i always have a number after _v

can anybody help Smilie

Last edited by fpmurphy; 07-29-2011 at 07:13 PM.. Reason: 7 changed to 2
# 2  
Old 07-29-2011
echo 1234_v2_abcd | perl -lne 'print(index($_, "_v")+2)'

Or if +3 if you count position from 1.
This User Gave Thanks to yazu For This Post:
# 3  
Old 07-29-2011
thank you! works perfect
# 4  
Old 07-29-2011
expr 1234_v2_abcd : '.*_v.'

This User Gave Thanks to binlib For This Post:
# 5  
Old 08-02-2011

thank you for your reply, your solution also works fine!
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Count specific character of a file in each line and delete this character in a specific position

I will appreciate if you help me here in this script in Solaris Enviroment. Scenario: i have 2 files : 1) /tmp/TRANSACTIONS_DAILY_20180730.txt: 201807300000000004 201807300000000005 201807300000000006 201807300000000007 201807300000000008 2)... (10 Replies)
Discussion started by: teokon90
10 Replies

2. Shell Programming and Scripting

Copying character at certain position

So I'm iterating through a series of strings and I want to pick out a character in a certain position so if I have the string abcde asigned to the variable $B. Let $i=2, then I'd like it to asign the variable $a=b similarly, if $i=3 then $a=c The only things I can think of work with cut,... (3 Replies)
Discussion started by: viored
3 Replies

3. Shell Programming and Scripting

Find character and Replace character for given position

Hi, i want find the character '-' in a file from position 284-298, if it occurs i need to replace it with 'O ' for the position in the file. How to do that using SED command. thanks in advance, Sara (9 Replies)
Discussion started by: Sara183
9 Replies

4. Shell Programming and Scripting

position of character in a line

i want to find the position of a character in a line , the first position, last, 5th occurence position , i ve tried grep -n , and expr index but they dont fit the bill. Please let me know if there is any other alternative (2 Replies)
Discussion started by: phpsnook
2 Replies

5. Shell Programming and Scripting

Identify the position of character

Hi, Can some one guide me to identify the position of a character using index in UNIX. I have a record like "17/11/2010 15:16:39;reject;;daemon alert; src:; dst:" . I need to identify the value which comes after _src:_ (_ denotes space). I am able to... (15 Replies)
Discussion started by: suneel.mekala
15 Replies

6. Shell Programming and Scripting

insert character in particular position.

I want to insert space in 7th position of all the lines usign vi editor or sed command Input file 12345689010 abcdefghijk . . Output file 123456 89010 abcdef ghijk . . (7 Replies)
Discussion started by: Jairaj
7 Replies

7. Shell Programming and Scripting

URG!! Last position of a character

Hi. If I have files with names like how can I get the XYZ or XYZW part? is there something like an Index() function but in reverse order? I was thinking that if I can get the position of the last dot... (7 Replies)
Discussion started by: mrodrig
7 Replies

8. UNIX for Dummies Questions & Answers

How to split a value according to character position

Hello all, I have a script which picks up a series of large numbers, each of which are actually amalgamations of a series of other numbers. Unfortunately there are no separator characters so I can't use awk -F. I am looking for a way of splitting them into variables according to their... (4 Replies)
Discussion started by: michaeltravisuk
4 Replies

9. UNIX for Advanced & Expert Users

Counting position of a character

Hi All, I have a file of the format : idsfskjvfdznvdfjvh ierwjfkncmvlkmc xszkmdvnosndzjndf weuhrndzierfncv rndsjnsllshens iernzkfndslkdhf zkinewfinfvlkmvd I wish to count the occurrences of character 'z' in the file. I also need to find out the position of 'z' in various lines. and... (3 Replies)
Discussion started by: rochitsharma
3 Replies

10. UNIX for Dummies Questions & Answers

Character position

Hi , I am required to view the fixed postion file very often . I am looking for the utility like this if the file has a one or multile line abcdefghijklmnopqr Utility should make my file look like this 12345678910111213141516-------------------------- abcdefghijk l m n o p q r ... (4 Replies)
Discussion started by: akrathi
4 Replies
Login or Register to Ask a Question