Extract characters from a string name

 
Thread Tools Search this Thread
Top Forums UNIX for Beginners Questions & Answers Extract characters from a string name
# 1  
Old 11-01-2017
Extract characters from a string name

Hi All,

I am trying to extract only characters from a string value eg:
Code:
abcdedg1234.cnf

How can I extract only characters
Code:
abcdedg

and assign to a variable.
Please help.

Thanks

Last edited by Scrutinizer; 11-01-2017 at 07:19 AM.. Reason: code tags
# 2  
Old 11-01-2017
Quote:
Originally Posted by abhi_123
Hi All,
I am trying to extract only characters from a string value eg: abcdedg1234.cnf
How can I extract only characters abcdedg and assign to a variable.
Please help.
Thanks
Hello abhi_123,

Please use CODE TAGS as per forum rules for your sample Input_file and sample output_file, following may help you in same.
Code:
val="abcdedg1234.cnf"
echo "$val" |  awk '{match($0,/[a-zA-Z]+/);print substr($0,RSTART,RLENGTH)}'

To keep above into a variable and print it's value do following.
Code:
var=$(echo "$val" |  awk '{match($0,/[a-zA-Z]+/);print substr($0,RSTART,RLENGTH)}')
echo "$var"
abcdedg

Thanks,
R. Singh
These 2 Users Gave Thanks to RavinderSingh13 For This Post:
# 3  
Old 11-01-2017
Try:
Code:
var=abcdedg1234.cnf
echo "${var%%[![:alpha:]]*}"


Last edited by Scrutinizer; 11-01-2017 at 08:32 AM..
These 3 Users Gave Thanks to Scrutinizer For This Post:
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Outputting characters after a given string and reporting the characters in the row below --sed

I have this fastq file: @M04961:22:000000000-B5VGJ:1:1101:9280:7106 1:N:0:86 GGGGGGGGGGGGCATGAAAACATACAAACCGTCTTTCCAGAAATTGTTCCAAGTATCGGCAACAGCTTTATCAATACCATGAAAAATATCAACCACACCA +test-1 GGGGGGGGGGGGGGGGGCCGGGGGFF,EDFFGEDFG,@DGGCGGEGGG7DCGGGF68CGFFFGGGG@CGDGFFDFEFEFF:30CGAFFDFEFF8CAF;;8... (10 Replies)
Discussion started by: Xterra
10 Replies

2. UNIX for Dummies Questions & Answers

Extract string between two special characters

Hi, I have a file that looks something like >1-18*anc... (12 Replies)
Discussion started by: jyu429
12 Replies

3. Shell Programming and Scripting

Search String and extract few lines under the searched string

Need Assistance in shell programming... I have a huge file which has multiple stations and i wanted to search particular station and extract few lines from it and the rest is not needed Bold letters are the stations . The whole file has multiple stations . Below example i wanted to search... (4 Replies)
Discussion started by: ajayram_arya
4 Replies

4. Shell Programming and Scripting

Extract string between 2 special characters

Hi, I have a unix file with contents as below Line1: ABC MNN X$$QWERTY$$ JKL Line2: HELLO $$HOW$$ ARE $$YOU$$ DOING i want to extract the string between $$ and $$ ie i want the output as QWERTY HOW YOU i want those strings seperated by some character say | desired output is... (7 Replies)
Discussion started by: vinredmac
7 Replies

5. Shell Programming and Scripting

to extract string from main string and string comparison

continuing from my previous post, whose link is given below as a reference https://www.unix.com/shell-programming-scripting/171076-shell-scripting.html#post302573569 consider there is create table commands in a file for eg: CREATE TABLE `Blahblahblah` ( `id` int(11) NOT NULL... (2 Replies)
Discussion started by: vivek d r
2 Replies

6. Shell Programming and Scripting

remove characters from string based on occurrence of a string

Hello Folks.. I need your help .. here the example of my problem..i know its easy..i don't all the commands in unix to do this especiallly sed...here my string.. dwc2_dfg_ajja_dfhhj_vw_dec2_dfgh_dwq desired output is.. dwc2_dfg_ajja_dfhhj it's a simple task with tail... (5 Replies)
Discussion started by: victor369
5 Replies

7. Shell Programming and Scripting

help with Scripting - trying to search for string and extract next few characters

Hi I am new to world on unix scripting so any assistance would be gratefully appreciated, I am trying to write a script which reads through a file, reads in line by line, searches for a pattern, copies string after it and then to do a search and replace elsehwere in the line, so the... (7 Replies)
Discussion started by: LonJ_80
7 Replies

8. Shell Programming and Scripting

Extract upper case characters from a string

Hi Friends, I have a script which returns me the following values line by line ora_smon_RCAT102 oracleKHP102B (DESC oraclePROOIDDB92 (DES oraclePMS (DESCRIP oracleBRIO (LOCAL=N oracleBRIO (LOCAL=N oraclePRDB92 (DES oracleBRIO (LOCAL=N oracleBRIO (LOCAL=N oraclePMS (DESCRIP... (4 Replies)
Discussion started by: orakhan
4 Replies

9. Shell Programming and Scripting

Search for string in a file and extract another string to a variable

Hi, guys. I have one question: I need to search for a string in a file, and then extract another string from the file and assign it to a variable. For example: the contents of the file (group) is below: ... ftp:x:23: mail:x:34 ... testing:x:2001 sales:x:2002 development:x:2003 ...... (6 Replies)
Discussion started by: daikeyang
6 Replies

10. Shell Programming and Scripting

Extract string between two different characters

I want to extract a string from a line in a text file between two different characters: for example: :string" I want to extract string. It has to be done in a one-liner. (11 Replies)
Discussion started by: rein
11 Replies
Login or Register to Ask a Question