Vi single character change Post: 302087233

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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...

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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

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Change case of single character in pattern

Using UNIX tools, but not using GAWK (NAWK is OK), is there a more elegant way to achieve this: sed ' s/_a/_A/1 s/_b/_B/1 s/_c/_C/1 rest of alpahabet ' I want to change the case of a single character in each string of a text file. The character will be matched by regex '_' and only...

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Dear Mates, I am trying to write a macro to replace with its arguments with singles quotes around each argument. #define DECR(a,b,c,d,e) decr('a','b','c','d','e') if the usage is DECR(k,e,y,s,\0) I want it to be replaced with the following decr('k','e','y','s','\0') However it...

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How to repeat a character in a field if it's a single character?

I have a csv dataset like this : C,rs18768 G,rs13785 GA,rs1065 G,rs1801279 T,rs9274407 A,rs730012 I'm thinking of use like awk, sed to covert the dataset to this format: (if it's two character, then keep the same) CC,rs18768 GG,rs13785 GA,rs1065 GG,rs1801279 TT,rs9274407...

LEARN ABOUT DEBIAN

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)

10 More Discussions You Might Find Interesting

1. Programming

reading a single character in C

Discussion started by: alodha

2. Shell Programming and Scripting

Single character wildcard for SED

Discussion started by: stevefox

3. UNIX for Dummies Questions & Answers

Trying to remove single character from a line

Discussion started by: Iz3k34l

4. UNIX for Dummies Questions & Answers

Change case of single character in pattern

Discussion started by: uiop44