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Top Forums Shell Programming and Scripting Looping through filenames with spaces Post 302262717 by joeyg on Friday 28th of November 2008 01:20:05 PM
Old 11-28-2008
Hammer & Screwdriver A couple of thoughts

use of quotes and use of IFS

Code:
> cat see_blanks
ls -l file* 
ls | grep "file" >f_list

while read filename
  do
  echo "### echo"
  echo $filename
  echo "### ls"
  ls $filename
  echo "### ls in quotes"
  ls "$filename"
  echo "### play with IFS"
  OLDIFS=$IFS
  IFS="~"
  ls $filename
  IFS=$OLDIFS

done<f_list

prorgam execution

Code:
> see_blanks
-rw-rw---- 1 xxx dp 0 Nov 28 10:04 file 04
-rw-rw---- 1 xxx dp 0 Nov 28 10:04 file01
### echo
file 04
### ls
ls: cannot access file: No such file or directory
ls: cannot access 04: No such file or directory
### ls in quotes
file 04
### play with IFS
file 04
### echo
file01
### ls
file01
### ls in quotes
file01
### play with IFS
file01

So, if I use the variable inside quotes, it works. And if I reset the IFS setting then I do not break-apart the commands at each space.
 

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lltag_formats(5)						File Formats Manual						  lltag_formats(5)

NAME
formats - Internal formats database file for lltag DESCRIPTION
The internal format database is usually stored in /etc/lltag/formats. The user may override this file by defining a $HOME/.lltag/formats. If this file exists, the system-wide one is ignored. These files contain entries starting with a line such as: [%n - %a - %t] A title between bracket that will be displayed at runtime. Then, the following 3 lines must be given to explain how the format is actually used to parse filenames: type = basename The type is either basename (to parse the last part of the path to a file) or path (to parse the directory part of the path to a file). When actually parsing the path to target files, basename and path parsers will be assembled. All possible combination will be tried. regexp = %L%N%S-%S%A%S-%S%A%L A string composed of any characters, with the following special fields: %L for delimiter (empty by default, multiple spaces if --spaces was given) %S for a space (or multiple spaces if --spaces was given) %N for numbers %A for an alphanumeric string without / %P for any path (alphanumeric string with /) %% for % indices = NUMBER,ARTIST,TITLE A list of fields to match (either given by their full name or associated letter) corresponding to each %N or %A field in the previ- ous format. It may be AUTHOR (or a), ALBUM (A), GENRE (g), NUMBER (n), TITLE (t), DATE (d), COMMENT (c) or IGNORE (i). See also FORMAT in the manpage of lltag for details about these fields. SEE ALSO
lltag(1) AUTHOR
Brice Goglin NOVEMBER 2006 lltag_formats(5)
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