Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Use of tr command to translate after 1st character of each line in a file

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Use of tr command to translate after 1st character of each line in a file
# 1  
Old 09-27-2014
Use of tr command to translate after 1st character of each line in a file
Hello,


I have an input file contaning following data:

Code:
< 12345;5454;77;qwert< yuyuy;ruwuriwru> yyyw;
> 35353;68686;424242;hrjwhrwrwy< dgdgd;

I have first character as '<' or '>'and after that one space is their in each line

I just want to replace 1st space encountered after < or > in a file with ; symbol


output should be like this:

Code:
<;12345;5454;77;qwert< yuyuy;ruwuriwru> yyyw;
>;35353;68686;424242;hrjwhrwrwy< dgdgd;

Thanks in advance
Last edited by Scrutinizer; 09-27-2014 at 09:57 PM.. Reason: CODE tags
# 2  
Old 09-27-2014
Quote:
Originally Posted by abhi001cse
Hello,


I have an input file contaning following data:

< 12345;5454;77;qwert< yuyuy;ruwuriwru> yyyw;
> 35353;68686;424242;hrjwhrwrwy< dgdgd;

I have first character as '<' or '>'and after that one space is their in each line

I just want to replace 1st space encountered after < or > in a file with ; symbol


output should be like this:

<;12345;5454;77;qwert< yuyuy;ruwuriwru> yyyw;
>;35353;68686;424242;hrjwhrwrwy< dgdgd;

Thanks in advance
Hello abhi001cse;
Welcome to forum, please use code tags while posting codes and commands.
Following awk solution may help you.

Code:
awk -F";" '{sub(/ /,";",$1);print}' OFS=";" Input_file

Output will be as follows.

Code:
<;12345;5454;77;qwert< yuyuy;ruwuriwru> yyyw;
>;35353;68686;424242;hrjwhrwrwy< dgdgd;

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
abhi001cse
# 3  
Old 09-27-2014
Thanks a lot Ravinder.Its working fine
# 4  
Old 09-27-2014
how about
Code:
sed -r 's/^(<|>) /\1;/' file

btw: you can't use tr for that; it will replace ALL occurrences, not just the first.
Login or Register to Ask a Question

Previous Thread | Next Thread

9 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. UNIX for Dummies Questions & Answers

Cut command doesn't remove (^C) character from only first line

I have a file which has first 2 junk characters(X^C) at beginning of each line in file. When i run cut -c 2- filename it removes junk characters from all lines except on first line it keeps one junk character control C(^C). Not sure why it is not removing only from first line. (2 Replies)
Discussion started by: later_troy
2 Replies

3. Shell Programming and Scripting

Unix command to select first few characters and last character of a line

I have a huge file and I want to select first 10 charcters and last 2 characters of everyline and than will filter the unique line. I know, it must be easy bt I am new to unix scripting:) Ex. I have file as below and need to e3kbaird and last 2 characters. and than unique records. ... (3 Replies)
Discussion started by: Sanjeev Yadav
3 Replies

4. Shell Programming and Scripting

Ignore the 255 character limit of command line

Hi I would just like to ask if there is a way for UNIX to ignore/overcome the 255 character limit of the command line? My problem is that I have a really long line of text from a file (300+ bytes) which i have to "echo" and process by adding commands like "sed" to the end of the line, like... (5 Replies)
Discussion started by: agentgrecko
5 Replies

5. HP-UX

How to remove new line character and append new line character in a file?

Hi Experts, I have data coming in 4 columns and there are new line characters \n in between the data. I need to remove the new line characters in the middle of the row and keep the \n character at the end of the line. File is comma (,) seperated. Eg: ID,Client ,SNo,Rank 37,Airtel \n... (8 Replies)
Discussion started by: sasikari
8 Replies

6. Shell Programming and Scripting

Awk not working due to missing new line character at last line of file

Hi, My awk program is failing. I figured out using command od -c filename that the last line of the file doesnt end with a new line character. Mine is an automated process because of this data is missing. How do i handle this? I want to append new line character at the end of last... (2 Replies)
Discussion started by: pinnacle
2 Replies

7. Shell Programming and Scripting

How to translate character and font sets ?

Hi, below is an example of dialog script from the net, I would like to run from a command line in putty terminal opened session. The issue is some characters get replaced by dots. Could you advise me a solution to edit the following string into window character set accepted by putty ? I... (2 Replies)
Discussion started by: jack2
2 Replies

8. Shell Programming and Scripting

How can use the perl or other command line to calculate the length of the character?

For example, if I have the file whose content are: >HWI-EAS382_30FC7AAXX:7:1:927:1368 AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA >HWI-EAS382_30FC7AAXX:7:1:924:1373 ACGAACTTTAAAGCACCTCTTGGCTCGTATGCCGTC I want my output calculate the total length of nucleotide. So my output should look like this:... (1 Reply)
Discussion started by: patrick chia
1 Replies

9. UNIX for Dummies Questions & Answers

Need to serach if a new line character exists on the last line in a file

I have a file in which I need to search if a new line character exists on the last line in the file. Please let me know how can I achieve it using Unix commands? (10 Replies)
Discussion started by: sunilbm78
10 Replies
Login or Register to Ask a Question