Sponsored Content
Top Forums Shell Programming and Scripting How to repeat a character in a field if it's a single character? Post 303034521 by RavinderSingh13 on Sunday 28th of April 2019 01:16:11 AM
Old 04-28-2019
Hello nengcheng,

It is always recommended to add your efforts in your post which you have out in order to solve your own problem, could you please try following.

Code:
awk 'BEGIN{FS=OFS=","} length($1)==1{sub(/.*/,"&&",$1)} 1 '  Input_file

Output will be as follows.
Code:
CC,rs18768
GG,rs13785
GA,rs1065
GG,rs1801279
TT,rs9274407
AA,rs730012


2nd solution: Using $1 value itself to make it double.
Code:
awk 'BEGIN{FS=OFS=","} length($1)==1{$1=$1$1} 1'   Input_file

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
 

10 More Discussions You Might Find Interesting

1. Programming

reading a single character in C

Can anyone help me????? My problem is that i want to read only one charcter from keyboard. Each time my program waits to press enter or ^d. I don't want that. As soon as i press a charcter it should proceed to next statement in program without pressing enter or ^d. please help... (3 Replies)
Discussion started by: alodha
3 Replies

2. Shell Programming and Scripting

Vi single character change

I know this is strictly a programming forum - but I consider vi a programming enabler and the question relates to regex you'd use with awk/sed anyway.... I have a file which is 50,000+ lines long and need to change many many instances of word_word_word to be word+word+word where... (6 Replies)
Discussion started by: Brett Taylor
6 Replies

3. UNIX for Dummies Questions & Answers

Trying to remove single character from a line

Here is a sample code grep '903' -i user.txt | tail -2 | awk '{print $2}' | sed 's/B//g' the input file has data as such 903-xxx-xxxxB 903-xxx-xxxxB It is a dialer file i want to remove the "B" any help thanks (5 Replies)
Discussion started by: Iz3k34l
5 Replies

4. Shell Programming and Scripting

repeat character with printf

It's all in the subject. I try to figure out how to repeat a character a number of time with printf. For example to draw a line in a script output. Thks (13 Replies)
Discussion started by: ripat
13 Replies

5. UNIX for Dummies Questions & Answers

SED: Can't Repeat Search Character in SED Output

I'm not sure if the problem I'm seeing is an artifact of sed or simply a beginner's mistake. Here's the problem: I want to add a zero-width space following each underscore between XML tags. For example, if I had the following xml: <MY_BIG_TAG>This_is_a_test</MY_BIG_TAG> It should look like... (8 Replies)
Discussion started by: rhetoric101
8 Replies

6. Shell Programming and Scripting

Count number of occurences of a character in a field defined by the character in another field

Hello, I have a text file with n lines in the following format (9 column fields): Example: contig00012 149606 G C 49 68 60 18 c$cccccacccccccccc^c I need to count the number of lower-case and upper-case occurences in column 9, respectively, of the... (3 Replies)
Discussion started by: s052866
3 Replies

7. Shell Programming and Scripting

Replace multiple occurances of same character with a single character.

Hi all, Greetings, I have the following scenario, The contents of main file are like : Unix|||||forum|||||||||||||||is||||||the||best so||||||be|||||on||||||||||||||||||||||||||||||||||||||||||||it And i need the output in the following form: Unix=forum=is=the=best so=be=on=it ... (3 Replies)
Discussion started by: dipanchandra
3 Replies

8. UNIX for Dummies Questions & Answers

Backspace to delete a single character

Hi I normally use backspace to delete a single on my local machine in cygwin. Now I am trying cygwin on a virtual machine and when I type 'backspace', instead of a single character being deleted, the entire word gets deleted. How do I change the settings for it? I read somewhere that I... (2 Replies)
Discussion started by: ladyAnne
2 Replies

9. Shell Programming and Scripting

Replace a field with a character as per the field length

Hi all, I have a requirement to replace a field with a character as per the length of the field. Suppose i have a file where second field is of 20 character length. I want to replace second field with 20 stars (*). like ******************** As the field is not a fixed one, i want to do the... (2 Replies)
Discussion started by: gani_85
2 Replies

10. Shell Programming and Scripting

awk sed to repeat every character on same position from the upper line replacing whitespace

Hello is it possible with awk or sed to replace any white space with the previous line characters in the same position? I am asking this because the file I have doesn't always follow a pattern. For example the file I have is the result of a command to obtain windows ACLs: icacls C:\ /t... (5 Replies)
Discussion started by: nakaedu
5 Replies
IRSEND(1)								FSF								 IRSEND(1)

NAME
irsend - basic LIRC program to send infra-red commands SYNOPSIS
irsend [options] DIRECTIVE REMOTE CODE [CODE...] DESCRIPTION
Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such as TV boxes, HiFi sets, etc. DIRECTIVE can be: SEND_ONCE - send CODE [CODE ...] once SEND_START - start repeating CODE SEND_STOP - stop repeating CODE LIST - list configured remote items SET_TRANSMITTERS - set transmitters NUM [NUM ...] SIMULATE - simulate IR event REMOTE is the name of a remote, as described in the lircd configuration file. CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file. NUM is the transmitter number of the hardware device. For the LIST DIRECTIVE, REMOTE and/or CODE can be empty: LIST "" "" - list all configured remote names LIST REMOTE "" - list all codes of REMOTE LIST REMOTE CODE - list only CODE of REMOTE The SIMULATE command only works if it has been explicitly enabled in lircd. -h --help display usage summary -v --version display version -d --device use given lircd socket [/var/run/lirc/lircd] -a --address=host[:port] connect to lircd at this address -# --count=n send command n times EXAMPLES
irsend LIST DenonTuner "" irsend SEND_ONCE DenonTuner PROG-SCAN irsend SEND_ONCE OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3 irsend SEND_STOP OnkyoAmpli VOL-DOWN irsend SET_TRANSMITTERS 1 irsend SET_TRANSMITTERS 1 3 4 irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S" FILES
/etc/lirc/lircd.conf Default lircd configuration file. It should contain all the remotes, their infra-red codes and the corresponding timing and wave- form details. DIAGNOSTICS
If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics: "irsend: could not connect to socket" "irsend: Connection refused" (or "Permission denied"). SEE ALSO
The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory. lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org. irsend 0.8.7pre1 May 2010 IRSEND(1)
All times are GMT -4. The time now is 07:43 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy