inpath

#!/bin/bash
#Written by Manuel Iglesias. glesialo@gmail.com
#

CommandName=${0##*/}

echoE()
{
echo -e $* 1>&2
    return 0
}

Usage()
{
echoE "'$CommandName' searches for files in \$PATH directories and prints those found."
echoE "FileNames with Metacharacters should be enclosed in single quotes."
echoE "Usage: '$CommandName FileName [FileName ...]'."
echoE
    return 0
}



if [ $# -lt 1 ] || [ "$1" == "-h" ] || [ "$1" == "-?" ] || [ "$1" == "--help" ] || [ "$1" == "-help" ]
  then
    Usage
    exit 64
fi

#Not found
ExitCode=70
#Substitute ':' by blanks and take care of different cases of '.' in PATH.
for Dir in `echo $PATH | sed 's/^:/.:/
                              s/::/:.:/g
                              s/:$/:./
                              s/:/ /g'`
  do
    ValidDirectory=true
    InfoDirLine="Directory '$Dir"
    if [ -L "$Dir" ] && ! [ -e "$Dir" ]
      then
        InfoDirLine=$InfoDirLine"' Broken link!"
        ValidDirectory=false
      else
        if ! [ -e "$Dir" ]
          then
            InfoDirLine=$InfoDirLine"' Warning: not found!"
            ValidDirectory=false
          else
            if ! [ -d "$Dir" ]
              then
                InfoDirLine=$InfoDirLine"' Warning: not a directory!"
                ValidDirectory=false
            fi
        fi
    fi
    if $ValidDirectory
      then
#       If last character of $Dir is not "/"
        if [ "${Dir:${#Dir}-1:1}" != "/" ]
          then
            InfoDirLine=$InfoDirLine"/"
        fi
        if [ -L "$Dir" ]
          then
            OriginalDir=`readlink -e $Dir`
            Dir=$OriginalDir
#           If last character of $OriginalDir is not "/"
            if [ "${OriginalDir:${#OriginalDir}-1:1}" != "/" ]
              then
                InfoDirLine=$InfoDirLine" -> $OriginalDir/"
              else
                InfoDirLine=$InfoDirLine" -> $OriginalDir"
            fi
        fi
        InfoDirLine=$InfoDirLine"':"
    fi
    if $ValidDirectory
      then
        FoundFiles=""
        cd $Dir
        FoundFiles=`ls -1ABd $@ 2>/dev/null`
        if [ -n "$FoundFiles" ]
          then
            ExitCode=0
            echo $InfoDirLine
            for FileName in $FoundFiles
              do
                InfoLine="\t$FileName"
                if [ -L $FileName ]
                  then
                    OriginalFile=`readlink -e $FileName`
                    if [ -n "$OriginalFile" ]
                      then
                        if [ -d "$OriginalFile" ]
                          then
                            InfoLine=$InfoLine"/ -> ${OriginalFile#${Dir}/}/"
                          else
                            InfoLine=$InfoLine" -> ${OriginalFile#${Dir}/}"
                            if ! [ -x "$OriginalFile" ]
                              then
                                InfoLine=$InfoLine"  Not executable!"
                            fi
                        fi
                      else
                        InfoLine=$InfoLine" (broken link)"
                    fi
                  else
                    if [ -d "$FileName" ]
                      then
                        InfoLine=$InfoLine"/"
                      else
                        if ! [ -x "$FileName" ]
                          then
                            InfoLine=$InfoLine"  Not executable!"
                        fi
                    fi
                fi
                echo -e "$InfoLine"
              done
        fi
      else
        echo $InfoDirLine
    fi
  done

exit $ExitCode