Sponsored Content
Full Discussion: removing lines without text
Top Forums Shell Programming and Scripting removing lines without text Post 302582180 by CarloM on Thursday 15th of December 2011 05:00:54 AM
Old 12-15-2011
Try sed '/^[:space:]*$/d'.
This User Gave Thanks to CarloM For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Removing lines in a text file.

Here is my problem I'm hoping you guru's can help me figure out. I have a text file that contains comma delimited columns. What I'm looking to do is see if the 24th column on each row in the file contains a value (not null), and then write/append that line to a different file. I've been... (4 Replies)
Discussion started by: WABonnett
4 Replies

2. Solaris

removing particular lines ending with a .cnt extension in a text file

I have a text file with rows of information (it is basically a ls command information(o/p from ls command)) I need to remove the lines ending with a .cnt extension and keep the lines ending with .zip extension, how to accomplish this. I also only need the date,size and name of the file from every... (2 Replies)
Discussion started by: ramky79
2 Replies

3. UNIX for Dummies Questions & Answers

removing multiple lines of text in a file

Hi, I'm trying to remove multiple lines of text based off a series of different words and output it to a new file The document contains a ton of data but i want to delete any line that has the following mx1.rr.biz.com or ns2.ri.biz.com i tried using grep -v filename "mx1.rr.biz.com" >... (3 Replies)
Discussion started by: spartan22
3 Replies

4. Shell Programming and Scripting

Removing empty lines(space) between two lines containing strings

Hi, Please provide shell script to Remove empty lines(space) between two lines containing strings in a file. Input File : A1/EXT "BAP_BSC6/07B/00" 844 090602 1605 RXOCF-465 PDTR11 1 SITE ON BATTERY A2/EXT... (3 Replies)
Discussion started by: sudhakaryadav
3 Replies

5. UNIX for Dummies Questions & Answers

Removing trailing lines at the end of a text file

How do you remove trailing empty lines at the end of a text file? Thanks! (3 Replies)
Discussion started by: evelibertine
3 Replies

6. Shell Programming and Scripting

Removing md5sum lines stored in text file

Hello. I'm writing a script where every file you create will generate a md5sum and store it into a text file. Say I create 2 files, it'll look like this in the text file: d41d8cd98f00b204e9800998ecf8427e /helloworld/saystheman d41d8cd98f00b204e9800998ecf8427e /helloworld/test I... (3 Replies)
Discussion started by: batarangs_
3 Replies

7. UNIX for Dummies Questions & Answers

Removing PATTERN from txt without removing lines and general text formatting

Hi Everybody! First post! Totally noobie. I'm using the terminal to read a poorly formatted book. The text file contains, in the middle of paragraphs, hyphenation to split words that are supposed to be on multiple pages. It looks ve -- ry much like this. I was hoping to use grep -v " -- "... (5 Replies)
Discussion started by: AxeHandle
5 Replies

8. Shell Programming and Scripting

Joining broken lines and removing empty lines

Hi - I have req to join broken lines and remove empty lines but should NOT be in one line. It has to be as is line by line. The challenge here is there is no end of line/start of line char. thanks in advance Source:- 2003-04-34024|04-10-2003|Claims|Claim|01-13-2003|Air Bag:Driver;... (7 Replies)
Discussion started by: Jackceasar123
7 Replies

9. Shell Programming and Scripting

Removing multiple lines from input file, if multiple lines match a pattern.

GM, I have an issue at work, which requires a simple solution. But, after multiple attempts, I have not been able to hit on the code needed. I am assuming that sed, awk or even perl could do what I need. I have an application that adds extra blank page feeds, for multiple reports, when... (7 Replies)
Discussion started by: jxfish2
7 Replies

10. Shell Programming and Scripting

Selecting text on multiple lines, then removing a beginning and end patterns

I have a file similar to the below. I am selecting only the paragraphs with @inlineifset. I am using the following command sed '/@inlineifset/,/^ *$/!d; s/@inlineifset{mrg, @btpar{@//' $flnm >> $ofln This produces @section Correlations between seismograms,,,,}} ... (5 Replies)
Discussion started by: Danette
5 Replies
ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME
ppmtosixel - convert a portable pixmap into DEC sixel format SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC LJ250 color inkjet printer. If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file. OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com- pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni- tude larger than a compressed file and prints much slower. -margin If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci- fied, a 1.5 inch left margin will offset the image. PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?. BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation. SEE ALSO
ppm(5) AUTHOR
Copyright (C) 1991 by Rick Vinci. 26 April 1991 ppmtosixel(1)
All times are GMT -4. The time now is 07:52 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy