Sponsored Content
Full Discussion: Extract a character
Top Forums UNIX for Advanced & Expert Users Extract a character Post 302132640 by matrixmadhan on Saturday 18th of August 2007 06:43:18 AM
Old 08-18-2007
[QUOTE=bishweshwar;302132636][QUOTE=matrixmadhan;302132635]
Quote:
Originally Posted by bishweshwar


the first 2 characters are specified as ^..
the third character is mentioned as \(.\)
and the remaining characters starting from 4th character to till the end of the string is blocked by .*

Is there any other way...even...the expression .* how it blocks the rest of characters.
.* - refers to greedy match as you might know

since the first 3 characters are consumed as ( 2 characters and a third character ) all the remaining characters in the form .* would be blocked.

Does that answer your question ?
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

extract character + 1

Hi, I would like extract from a file a character or pattern after ( n + 1) a specific pattern (n) . ( i supposed with awk) how could i do ? Thanks in advance. (1 Reply)
Discussion started by: francis_tom
1 Replies

2. Shell Programming and Scripting

How to extract first column with a specific character

Hi All, Below is the sample data of my files: O|A|571000689|D|S|PNH|S|SI sadm|ibscml1x| I|A|571000689|P|S|PNH|S|SI sadm|ibscml1x| O|A|571000689|V|S|PNH|S|SI sadm|ibscml1x| S|C|CAM|D|S|PNH|R|ZOA|2004 bscml1x| ... (3 Replies)
Discussion started by: selamba_warrior
3 Replies

3. Shell Programming and Scripting

Extract the last character of a string

How can I extract the last character of a string (withou knowing how many characters are in that string ! ) (8 Replies)
Discussion started by: annelisa
8 Replies

4. Shell Programming and Scripting

Extract character from string

ps -eaf | grep “oracleTRLV (LOCAL=NO)” | while read ora_proc do echo $ora_proc done I would like to modify the above shell so that if character 13 and 14 equal "12" to do something. Sorry I'm new to shell:( (14 Replies)
Discussion started by: NicoMan
14 Replies

5. Shell Programming and Scripting

Extract a character specifying position

hi , i am having a file Full_ARTMAS_20110510152425.xml in my local directory. i wanted to extract the character at the 35143546 th position at line 1 of this file.Can any body help me how to do it??? regards Anjali (2 Replies)
Discussion started by: angel12345
2 Replies

6. Shell Programming and Scripting

Extract text between two character positions

Greetings. I need to extract text between two character positions, e.g: all text between character 4921 and 6534. The text blocks are FASTA-format sequence of whole chromosomes, so basically a million A, T, G, C, combinations. E.g: >Chr_1 ACCTGTTCAACTCTCAGGACTCTCAGGTCAACTCTCAG... (3 Replies)
Discussion started by: Twinklefingers
3 Replies

7. Shell Programming and Scripting

Extract First character in Second column

Hi, I need to extract the first character of second column of my file. If the condition matches, then I need to print the 2nd and 3rd column as my output I tried below mentioned query but it was not working awk -F'|' '$2~/^5/' Sgn_group.txt File Name : Sgn_group.txt country... (2 Replies)
Discussion started by: suresh_target
2 Replies

8. Shell Programming and Scripting

How to use substr to extract character between two semicolon?

Dear folks Hello I have a data set which one of the column of this data set are string and I want to extract numbers which is between two ":". However, I know the substr command which will do this operation but my problem is the numbers between two ":" have different digits. this will make my... (11 Replies)
Discussion started by: sajmar
11 Replies

9. Shell Programming and Scripting

Extract all first numeric character from a string

Hello, I have a file of strings a below:- 4358RYFHD9845 28/COC/UYF984 9834URD 98HJDU I need to extract all the first numeric character of every sting as follows:- 4358 28 9834 thanks to suggest ASAP Regards, Jasi Use code tags, thanks. (7 Replies)
Discussion started by: jassi10781
7 Replies

10. Shell Programming and Scripting

How to extract every 6-th character in a line?

Hi, I have a file consist of 25000 lines and each line has 2 columns 1 column with 6 numeric characters and 2nd one with 45000 numeric characters (not delimited). I want to take every 7th character form the 2nd column, keeping the first column. I made it in several steps but it run for 7 hours to... (7 Replies)
Discussion started by: SANDO
7 Replies
TR(1)							      General Commands Manual							     TR(1)

NAME
tr - translate characters SYNOPSIS
tr [ -cds ] [ string1 [ string2 ] ] DESCRIPTION
Tr copies the standard input to the standard output with substitution or deletion of selected characters (runes). Input characters found in string1 are mapped into the corresponding characters of string2. When string2 is short it is padded to the length of string1 by dupli- cating its last character. Any combination of the options -cds may be used: -c Complement string1: replace it with a lexicographically ordered list of all other characters. -d Delete from input all characters in string1. -s Squeeze repeated output characters that occur in string2 to single characters. In either string a noninitial sequence -x, where x is any character (possibly quoted), stands for a range of characters: a possibly empty sequence of codes running from the successor of the previous code up through the code for x. The character followed by 1, 2 or 3 octal digits stands for the character whose 16-bit value is given by those digits. The character sequence followed by 1, 2, 3, or 4 hexadecimal digits stands for the character whose 16-bit value is given by those digits. A followed by any other character stands for that character. EXAMPLES
Replace all upper-case ASCII letters by lower-case. tr A-Z a-z <mixed >lower Create a list of all the words in one per line in where a word is taken to be a maximal string of alphabetics. String2 is given as a quoted newline. tr -cs A-Za-z ' ' <file1 >file2 SOURCE
/src/cmd/tr.c SEE ALSO
sed(1) TR(1)
All times are GMT -4. The time now is 09:40 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy