etc/lesspipe.sh

   1 #!/bin/sh
   2 #
   3 # To use this filter with less, define LESSOPEN:
   4 # export LESSOPEN="|/usr/bin/lesspipe.sh %s"
   5 #
   6 # The script should return zero if the output was valid and non-zero
   7 # otherwise, so less could detect even a valid empty output
   8 # (for example while uncompressing gzipped empty file).
   9 # For backward-compatibility, this is not required by default. To turn
  10 # this functionality there should be another vertical bar (|) straight
  11 # after the first one in the LESSOPEN environment variable:
  12 # export LESSOPEN="||/usr/bin/lesspipe.sh %s"
  13
  14 #export LESSOPEN="|/Users/Galaxy/git/toGit/etc/lesspipe.sh %s"
  15
  16 if [ ! -e "$1" ] ; then
  17         exit 1
  18 fi
  19
  20 if [ -d "$1" ] ; then
  21         ls -alF -- "$1"
  22         exit $?
  23 fi
  24
  25 exec 2>/dev/null
  26
  27 # Allow for user defined filters
  28 if [ -x ~/.lessfilter ]; then
  29         ~/.lessfilter "$1"
  30         if [ $? -eq 0 ]; then
  31                 exit 0
  32         fi
  33 fi
  34
  35 case "$1" in
  36 *.[1-9n].bz2|*.[1-9]x.bz2|*.man.bz2|*.[1-9n].[gx]z|*.[1-9]x.[gx]z|*.man.[gx]z|*.[1-9n].lzma|*.[1-9]x.lzma|*.man.lzma)
  37         case "$1" in
  38         *.gz)           DECOMPRESSOR="gzip -dc" ;;
  39         *.bz2)          DECOMPRESSOR="bzip2 -dc" ;;
  40         *.xz|*.lzma)    DECOMPRESSOR="xz -dc" ;;
  41         esac
  42         if [ -n "$DECOMPRESSOR" ] && $DECOMPRESSOR -- "$1" | file - | grep -q troff; then
  43                 $DECOMPRESSOR -- "$1" | groff -Tascii -mandoc -
  44                 exit $?
  45         fi ;;
  46 *.[1-9n]|*.[1-9]x|*.man)
  47         if file "$1" | grep -q troff; then
  48                 man -l "$1" | cat -s
  49                 exit $?
  50         fi ;;
  51 *.tar) tar tvvf "$1" ;;
  52 *.tgz|*.tar.gz|*.tar.[zZ]) tar tzvvf "$1" ;;
  53 *.tar.xz) tar Jtvvf "$1" ;;
  54 *.xz|*.lzma) xz -dc -- "$1" ;;
  55 *.tar.bz2|*.tbz2) bzip2 -dc -- "$1" | tar tvvf - ;;
  56 *.[zZ]|*.gz) gzip -dc -- "$1" ;;
  57 *.bz2) bzip2 -dc -- "$1" ;;
  58 *.zip|*.jar|*.nbm) zipinfo -- "$1" ;;
  59 *.rpm) rpm -qpivl --changelog -- "$1" ;;
  60 *.cpi|*.cpio) cpio -itv < "$1" ;;
  61 *.gpg) gpg -d "$1" ;;
  62 *.gif|*.jpeg|*.jpg|*.pcd|*.png|*.tga|*.tiff|*.tif)
  63         if [ -x /usr/bin/identify ]; then
  64                 identify "$1"
  65         elif [ -x /usr/bin/gm ]; then
  66                 gm identify "$1"
  67         else
  68                 echo "No identify available"
  69                 echo "Install ImageMagick or GraphicsMagick to browse images"
  70                 exit 1
  71         fi ;;
  72 *)
  73         if [ -x /usr/bin/file ] && [ -x /usr/bin/iconv ] && [ -x /usr/bin/cut ]; then
  74                 case `file -b "$1"` in
  75                 *UTF-16*) conv='UTF-16' ;;
  76                 *UTF-32*) conv='UTF-32' ;;
  77                 esac
  78                 if [ -n "$conv" ]; then
  79                         env=`echo $LANG | cut -d. -f2`
  80                         if [ -n "$env" -a "$conv" != "$env" ]; then
  81                                 iconv -f $conv -t $env "$1"
  82                                 exit $?
  83                         fi
  84                 fi
  85         fi
  86         exit 1
  87 esac
  88 exit $?
  89