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Full Discussion: Removing a ? from multiple files
Top Forums Shell Programming and Scripting Removing a ? from multiple files Post 303020421 by tirmUK on Thursday 19th of July 2018 06:06:20 AM
Old 07-19-2018
Quote:
Originally Posted by chandan.chaman
Please try below command. It renames all files in directory/subdirectories.


Code:
 find . -type f -name "*?" | while read file; do mv "$file" "${file%?}"; done

Hi Chandan,

Unfortunately, it removes the last character from the file, no matter what it is, not just the carraige return.

---------- Post updated at 11:06 AM ---------- Previous update was at 10:58 AM ----------

Quote:
Originally Posted by RudiC
That echo is for check / debug purposes; it displays what the commands had looked like when executed. I should have mentioned that. As you can see in the output, the <CR> (\r) character makes the target file name overwrite the mv command.

- pipe above through less for checking.
- Remove the echo and rerun.
Hi RubiC, that worked a treat, thank you for your help, and your patience as I tried to explain the issue!
 

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LEARN ABOUT SUNOS

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)
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