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Top Forums Shell Programming and Scripting How to replace special characters? Post 302723811 by Yoda on Tuesday 30th of October 2012 09:46:33 PM
Old 10-30-2012
Try using the below command on your file and redirect the output to a new file and check if the special characters are removed:-

Code:
sed 's/'"$(printf '\015')"'//g' input_file > output_file

 

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pnm2ppa(5 Feb 2000)													       pnm2ppa(5 Feb 2000)

NAME
pbm2ppa - convert portable bitmap (PBM) to HP's Printing Performance Architecture (PPA) file format SYNOPSIS
pbm2ppa [options] [ <infile] > [ <outfile]> ] ] DESCRIPTION
Reads portable bitmap (PBM) format as input. Outputs a stream suitable for processing by Hewlett-Packard's range of Printing Performance Architecture (PPA) printers. pnm2ppa supports the HP 710c, 712c, 720c, 722c, 820c, and 1000c series printers. (Portable bitmap (PBM) format output can be produced from PostScript(tm) input by the GhostScript driver "pbmraw".) OPTIONS
infile Input file infile is either a path to a file or device, or '-' to indicate stdin (defaults to stdin) outfile Output file outfile is either a path to a file or device, or '-' to indicate stdout (defaults to stdout) -b bottommargin Sets the bottom margin bottommargin in units of 1/600 inches (e.g., -b 150 = 0.25") -d Displays the current configuration -f configfile Overrides reading the configuration from /etc/pnm2ppa.conf, and uses configfile instead. -h Displays program usage -l leftmargin Sets the left margin leftmargin in units of 1/600 inches (e.g., -l 150 = 0.25") -r rightmargin Sets the right margin rightmargin in units of 1/600 inches (e.g., -r 150 = 0.25") -s papersize Sets the paper size. Possible values for papersize are a4 (A4), letter or us (US Letter, 8.5"x11"), and legal (US Legal, 8.5"x14"). The default is US Letter. -t topmargin Sets the top margin topmargin in units of 1/600 inches (ie -t 150 = 0.25") -v printertype Selects the printer model. Possible values of printertype are: 710, 712, 720, 722, 820 and 1000. The default is the HP DeskJet 7X0 Series (710, 712, 720, 722). -x xoffset Sets the x-offset xoffset from the left of the page. Units are 1/600 inches -y yoffset Sets the y-offset yoffset from the top of the page. Units are 1/600 inches NOTES
The configuration file is read in first. Command line arguments then modify the resulting definitions. The -x and -y options accumulate. The -v option resets all definitions back to an inbuilt default for that printer and should be used before subsequent -b -l -r, -t, -x, and -y arguments. SEE ALSO
pbm(5) FILES
/etc/pbm2ppa.conf Default configuration file AUTHOR
This code is licensed under the GNU Public License version 2. See LICENSE for details. (c) 1998 Tim Norman HISTORY
This program was written by Tim Norman. It originally supported black and white output on the 820 series. This program is almost obsolete; its successor pnm2ppa will support color printing. BUGS
This is a stable driver, but does not support color printing. pnm2ppa(5 Feb 2000)
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