Sponsored Content
Top Forums Shell Programming and Scripting ignore blank lines in while loop Post 302590678 by venkatareddy on Tuesday 17th of January 2012 06:37:52 AM
Old 01-17-2012
Hi,
when i run the script w.r.t to this code it is reporting 3 only


Code:
$ sh script.sh
line is empty
line is empty
line is empty
Total line=3

Code:
$ cat script.sh
#! /bin/bash
clear
rdCount=0;
while read myline
do
  if [ -z "${myline}" ]; then
    echo "line is empty"
 else
 # echo $myline
  let rdCount=$rdCount+1
 fi
done < ps.txt
echo "Total line=$rdCount"

thanks,
venkat
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to count lines - ignoring blank lines and commented lines

What is the command to count lines in a files, but ignore blank lines and commented lines? I have a file with 4 sections in it, and I want each section to be counted, not including the blank lines and comments... and then totalled at the end. Here is an example of what I would like my... (6 Replies)
Discussion started by: kthatch
6 Replies

2. Shell Programming and Scripting

remove blank lines and merge lines in shell

Hi, I'm not a expert in shell programming, so i've come here to take help from u gurus. I'm trying to tailor a csv file that i got to make it work for the LOAD FROM command. I've a datatable csv of the below format - --in file format xx,xx,xx ,xx , , , , ,,xx, xxxx,, ,, xxx,... (11 Replies)
Discussion started by: dvah
11 Replies

3. Shell Programming and Scripting

Delete blank lines, if blank lines are more than one using shell

Hi, Consider a file named "testfile" The contents of file are as below first line added for test second line added for test third line added for test fourth line added for test fifth line added for test (5 Replies)
Discussion started by: anil8103
5 Replies

4. Shell Programming and Scripting

Help in replacing two blank lines with two lines of diff data

Hi.. I'm facing a trouble in replacing two blank lines in a file using shell script... I used sed to search a line and insert two blank lines after the searchd line using the following sed command. sed "/data/{G;G;}/" filename . In the file, after data tag, two lines got inserted blank lines..... (4 Replies)
Discussion started by: arjun_arippa
4 Replies

5. Shell Programming and Scripting

sed show lines text between 2 blank lines

I have a file like blah blah blah blah this is the text I need, which might be between 1-4 lines, but always has a blank line above and below it, and is at the end of the text file the code tags don't show the trailing blank line. I started by deleting the last blank line with: ... (2 Replies)
Discussion started by: unclecameron
2 Replies

6. UNIX for Dummies Questions & Answers

Finding lines with a regular expression, replacing them with blank lines

So the tag for this forum says all newbies welcome... All I want to do is go through my file and find lines which contain a given string of characters then replace these with a blank line. I really tried to find a simple command to do this but failed. Here's what I did come up with though: ... (2 Replies)
Discussion started by: Golpette
2 Replies

7. Shell Programming and Scripting

Ignore special characters in loop

Hi All, select app from the menu: ABC DEF GHI JKL ALL # ALL will select all the apps in the menu echo "Enter your option" read option; if then <execute the below command> elif # option is the 1 selection from menu...not ALL <execute the below command> else echo wrong... (6 Replies)
Discussion started by: Devaraj A
6 Replies

8. UNIX for Advanced & Expert Users

Delete blank spaces and blank lines in a file

Hi Gurus, Somebody can say me how to delete blank spaces and blank lines in a file unix, please. Thank you for advanced. (10 Replies)
Discussion started by: systemoper
10 Replies

9. Shell Programming and Scripting

To check Blank Lines, Blank Records and Junk Characters in a File

Hi All Need Help I have a file with the below format (ABC.TXT) : ®¿¿ABCDHEJJSJJ|XCBJSKK01|M|7348974982790 HDFLJDKJSKJ|KJALKSD02|M|7378439274898 KJHSAJKHHJJ|LJDSAJKK03|F|9898982039999 (cont......) I need to write a script where it will check for : blank lines (between rows,before... (6 Replies)
Discussion started by: chatwithsaurav
6 Replies

10. UNIX for Beginners Questions & Answers

Delete multiple lines between blank lines containing two patterns

Hi all, I'm looking for a way (sed or awk) to delete multiple lines between blank lines containing two patterns ex: user: alpha parameter_1 = 15 parameter_2 = 1 parameter_3 = 0 user: alpha parameter_1 = 15 parameter_2 = 1 parameter_3 = 0 user: alpha parameter_1 = 16... (3 Replies)
Discussion started by: ce9888
3 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 07:06 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy