Grep 2 consecutive lines and replace the second line in a file Post: 302937756

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grab next consecutive line or lines

Hello i'm writting a krn shell that will find the letter F and I would like to grab everything from F till 0:00. Is there a sed or awk command that i could use. Thank you. File is looks like this. 11/12 xxx xxxx xxx F xxxx xxxx some info entered here some info entered here xxxx...

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This is a variation of an earlier post found here: unixcom/shell-programming-scripting/159821-merge-two-non-consecutive-lines.html User Bartus11 was kind enough to solve that example. Previously, I needed help combining two lines that are non-consecutive in a file. Now I need to do the...

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sed to replace a line with 2 or more different lines in same file

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Hi All, I have a requirement to replace consecutive occurence of same string nedd to be replaced. Below is the input and desired output. Input: --------- 123.5|ABC|.|.|. 234.4|DEF|.|.|.|.|.| Output: --------- 123.5|ABC|||. 234.4|DEF||||| so basically "|.|" need to be replaced with...

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Grep multiple patterns(file) and replace whole line

I am able to grep multiple patterns which stored in a files. However, how could we replace the whole line with either the pattern or new string? For example: pattern_file: *Info in the () is not part of the pattern file. They are the intended name to replace the whole line after the pattern...

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ppmtosixel

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)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

grab next consecutive line or lines

Discussion started by: wisher115

2. Shell Programming and Scripting

Merge two non-consecutive lines based on line number or string

Discussion started by: munkee

3. Shell Programming and Scripting

Removing consecutive lines in a file

Discussion started by: deneuve01

4. Shell Programming and Scripting

sed to replace a line with 2 or more different lines in same file

Discussion started by: vivek d r