Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Replace characters infile with sed
Top Forums Shell Programming and Scripting Replace characters infile with sed Post 302901809 by owwow14 on Thursday 15th of May 2014 06:45:36 PM
Old 05-15-2014
Replace characters infile with sed
I have several files in a directory that look like this:

Code:
jacket-n	r
potential-n	-
outcome-n	f
reputation-n	b

I want to replace the characters in the second column with certain numbers. For instance, I want the letters 'f', 'r' and 'b' in the second column to replaced with 0 and I want the symbol '-' in the second column to be replaced with 1.

The result would be this:

Code:
jacket-n	0
potential-n	1
outcome-n	0
reputation-n	0

I have tried the following sed:

Code:
sed -i.bak -e 's/-/1/' -e 's/b/0' -e 's/f/' -e 's/r/0' input

but it does not work.
Any suggestions?
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to replace control characters using sed?

How can I use sed to replace a ctrl character such as 'new line' (\0a) to something else? Or any other good command can do this job? Thanks, Hillxy (5 Replies)
Discussion started by: hillxy
5 Replies

2. Shell Programming and Scripting

Sed replace characters not equal to an expression

Hi all, Suppose I have a file with the contents below, and I only want to print words %S_ then | sort -u. ------------------------------ The %S_MSG that starts with '%.*s' is too long. Maximum length is %d. The %S_MSG name '%.*s' contains more than the maximum number of prefixes. The... (5 Replies)
Discussion started by: poldo
5 Replies

3. Shell Programming and Scripting

Using sed to replace special characters

Hi everyone I have file1 contains: '7832' ' 8765 6543 I want a sed command that will format as: '7832' , '8765' , '6543' I tried sed -e s/\'//g -e 's/^*//;s/*$//' file1 > file2 sed -e :a -e '$!N; s/\n/ /; ta' file2 which gives: 7832 8765 6543 I need some help to continue with... (5 Replies)
Discussion started by: nimo
5 Replies

4. Shell Programming and Scripting

Bash: using SED, trying to replace some characters except first or last line

Hi, I require to replace 2 items: 1. replace start of all lines in a file with ' except the first line 2. replace end of all lines in a file with '||chr( except last line I am able to do the entire file using sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt but am not yet able... (0 Replies)
Discussion started by: Chella15
0 Replies

5. UNIX for Dummies Questions & Answers

Bash: using SED, trying to replace some characters except first or last line

Hi, I require to replace 2 items: 1. replace start of all lines in a file with ' except the first line 2. replace end of all lines in a file with '||chr( except last line I am able to do the entire file using sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt but am not yet... (3 Replies)
Discussion started by: Chella15
3 Replies

6. Shell Programming and Scripting

sed replace range of characters in each line

Hi, I'm trying to replace a range of characters by their position in each line by spaces. I need to replace characters 95 to 145 by spaces in each line. i tried below but it doesn't work sed -r "s/^(.{94})(.{51})/\ /" inputfile.txt > outputfile.txt can someone please help me... (3 Replies)
Discussion started by: Kevin Tivoli
3 Replies

7. Shell Programming and Scripting

How to replace all but the first 3 characters with sed?

This seems like it should be an easy problem, but for some reason I am struggling with the solution. I simply want to replace all characters after the first 3 characters with another character, preferably with sed. Thanks in advance. Like this, but producing the proper number of *'s: sed... (30 Replies)
Discussion started by: leolson
30 Replies

8. Shell Programming and Scripting

sed replace nth characters with string

Hi, I hope you can help me out please? I need to replace from character 8-16 with AAAAAAAA and the rest should stay the same after character 16 gtwrhtrd11111111rjytwyejtyjejetjyetgeaEHT wrehrhw22222222hytekutkyukrylryilruilrGEQTH hrwjyety33333333gtrhwrjrgkreglqeriugn;RUGNEURGU ... (4 Replies)
Discussion started by: stinkefisch
4 Replies

9. Shell Programming and Scripting

sed replace characters using a wildcard

Hello, I have some data that looks like the following, > <SALTDATA> (OVS0199262) HCl > <IDNUMBER> (OVS0199262) OVS0199262 > <SUPPLIER> (OVS0199262) TimTec > <EMAIL> (OVS0199262) info@timtec.net > <WEBSITE> (OVS0199262) http://www.timtec.net I need to remove the data in... (3 Replies)
Discussion started by: LMHmedchem
3 Replies

10. Shell Programming and Scripting

sed command on AIX, replace specific characters

Hi, Im using sed on an AIX machine. I am trying to change the 137-139 characters if they are a ' 36'/'000' to a '036'. The positions that need to be changed are fixed. the source data that I have is$cat v.txt 4000422985400050462239065593606500000007422985707771046154054910075641MC0318AMWAY... (9 Replies)
Discussion started by: dsid
9 Replies

LEARN ABOUT OSF1

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)
All times are GMT -4. The time now is 02:46 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy