Sponsored Content
Top Forums Shell Programming and Scripting Delete everything after empty line in file Post 303036315 by Scrutinizer on Saturday 22nd of June 2019 05:14:01 PM
Old 06-22-2019
To not print the empty line:
Code:
sed -n '/^$/q;p' file

Code:
sed '/^$/,$d' file

Code:
awk NR==1 RS= file

Code:
awk '!NF{exit}1'

This User Gave Thanks to Scrutinizer For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

printing an empty line in a file (perl)

I know this must be really easy, but i can't get it to work I've got a perl script, with a file. I want to print an empty line, and the following doesn't seem to work: print nameoffile "\n" thanks for your help!! (3 Replies)
Discussion started by: kfad
3 Replies

2. Shell Programming and Scripting

Delete an empty file from dir.

Hi, I have an dir which has 50K file, some of them are empty. I want to delete the empty file from the dir. I am planning to use the following command. ls -l | grep " 0 " | awk '{print $9}' I can copy this to an file and then how do I use this file to delete the empty files.... Any help... (2 Replies)
Discussion started by: Script40
2 Replies

3. Shell Programming and Scripting

Checking the Empty line in csv file

Hi all, I have one CSV file(MasterFile.csv) consists of two columns. "./incoming/ABC.CSV","./incoming/ABC_CONTROL.txt" "./incoming/PQR.CSV","./incoming/PQR_CONTROL.txt" "./incoming/123.CSV","./incoming/123_CONTROL.txt" I have written a script to read the MasterFile.csv.Here i want to... (4 Replies)
Discussion started by: sollins
4 Replies

4. UNIX for Dummies Questions & Answers

want to remove " in a file and delete empty spaces

I have to remove character " in file which occurs at every line and have to delete empty spaces. Please help (2 Replies)
Discussion started by: vikram2008
2 Replies

5. Shell Programming and Scripting

howto add line as a first line into a non empty file

Hi Trying to do like this : echo "$variable1\n $(cat file.txt)" but it only adds one time. When I run this cmd again with different variable it only replaces line of variable1. How to add constantly line into first line in file ? (3 Replies)
Discussion started by: presul
3 Replies

6. Shell Programming and Scripting

How to delete all leading empty lines in a file?

How to delete all leading empty lines in a file? $>cat input.txt test Test $> output file should be test Test $> (14 Replies)
Discussion started by: johnveslin
14 Replies

7. Shell Programming and Scripting

Sed insert text at first line of empty file

I can't seem to get sed to allow me to insert text in the first line of an empty file. I have a file.txt that is a 0 byte file. I want sed to insert " fooBar" onto the first line. I've tried a few options and nothing seems to work. They work just fine if there's text in the file tho. Help? (4 Replies)
Discussion started by: DC Slick
4 Replies

8. Shell Programming and Scripting

Adding New empty line in a file

Hi, I am new to Sed /awk commands. using that i want to add new empty line after every line in a file by leaving first three lines. So, can any one help me out how to achieve this. Example: --------- Input Filename: file1.txt Input Data: --------Report-------- Date:20-10-03... (4 Replies)
Discussion started by: G.K.K
4 Replies

9. Shell Programming and Scripting

Delete the last empty/blank line of the text file

Hi All, I have a file.txt which seems like having three lines. wc -l file.txt 3 file.txt In fact, once it is open in text editor, this file has four lines where the last line is empty. how can i delete this last empty line of the file.txt? I tried the codes below so far but they... (6 Replies)
Discussion started by: senayasma
6 Replies

10. Shell Programming and Scripting

Need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line...

Hello, I need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line... An example of entries in the file would be: SRVXPAPI001 ERRO JUN24 07:28:34 1775 REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F ... (8 Replies)
Discussion started by: Ferocci
8 Replies
IRSEND(1)							   User Commands							 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 0.9.0-pre1 October 2010 IRSEND(1)
All times are GMT -4. The time now is 10:43 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy