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Full Discussion: file extensions in a directory structure
Top Forums Shell Programming and Scripting file extensions in a directory structure Post 302337374 by kshji on Friday 24th of July 2009 03:20:35 AM
Old 07-24-2009
Solution using array:
Take extension list from current directory and subdirectories. Look your ls -1R output, if this need fixing (special lines like directory). This use assosiative array of ksh.
Code:
#!/bin/ksh
#listext
typeset -A exts
ls -1R | while read line
do
     case "$line" in
           "") continue ;; # empty line
           *:)  continue ;; # dir
     esac
     ext=${line##*.}
     [ "$ext" = "$line" ] && continue # no ext
     # or if you like to count also files without ext, then ex. mark those -
     # "$ext" = "$line" ] && ext="-"
     exts["$ext"]=1
done

for ext in ${!exts[*]}
do
     echo "$ext"
done

Code:
chmod a+rx listext
./listext > result.txt

 

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LEARN ABOUT HPUX

list_directory

list directory(1m)														list directory(1m)

NAME

       list directory - Displays a list of all the directories whose names match the specified directory name

SYNOPSIS

       cdscp list directory directory-name [with attribute-name = attribute-value]

ARGUMENTS

       The  full  name	of  a specific directory.  The last simple name can contain wildcard characters.  The name of a particular attribute.  The
       value of a particular attribute.

DESCRIPTION

       The list directory command displays a list of all the directories whose names match the specified directory name.  The last simple name can
       contain	wildcards.   You  can use a with attribute-name = attribute-value clause to limit output only to directories whose attributes have
       values equal to the specified values.  A space must precede and follow the = (equals sign).

   Privilege Required
       You must have read permission to the parent directory.  If you use a with attribute-name = attribute-value clause in the command, you  also
       need read or test permission to the selected directories.

NOTE

       This command is replaced at Revision 1.1 by the dcecp command and may not be provided in future releases of DCE.

EXAMPLE

       The following command displays the names of all the directories in the /.:/sales directory: cdscp> list directory /.:/sales/*

			       LIST
			  DIRECTORY   /.../abc.com/sales
				 AT   1991-10-15-15:43:58 atlanta austin boston chicago ontario ny seattle

RELATED INFORMATION

       Commands:  add  directory(1m),  create  directory(1m),  delete  directory(1m),  remove  directory(1m),  set directory(1m), set directory to
       skulk(1m), show directory(1m)

																list directory(1m)
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