(M)  s i s t e m a   o p e r a c i o n a l   m a g n u x   l i n u x ~/ · documentação · suporte · sobre

  Next Previous Contents

5. Using bzip2 with less

To uncompress bzip2'd files on the fly, i.e. to be able to use "less" on them without first bunzip2'ing them, you can make a lesspipe.sh (man less) like this:

#!/bin/sh
# This is a preprocessor for 'less'.  It is used when this environment
# variable is set:   LESSOPEN="|lesspipe.sh %s"

  case "$1" in
  *.tar) tar tvvf $1 2>/dev/null ;; # View contents of various tar'd files
  *.tgz) tar tzvvf $1 2>/dev/null ;;
# This one work for the unmodified version of tar:
  *.tar.bz2) bzip2 -cd $1 $1 2>/dev/null | tar tvvf - ;;
#This one works with the patched version of tar:
# *.tar.bz2) tyvvf $1 2>/dev/null ;;
  *.tar.gz) tar tzvvf $1 2>/dev/null ;;
  *.tar.Z) tar tzvvf $1 2>/dev/null ;;
  *.tar.z) tar tzvvf $1 2>/dev/null ;;
  *.bz2) bzip2 -dc $1  2>/dev/null ;; # View compressed files correctly
  *.Z) gzip -dc $1  2>/dev/null ;;
  *.z) gzip -dc $1  2>/dev/null ;;
  *.gz) gzip -dc $1  2>/dev/null ;;
  *.zip) unzip -l $1 2>/dev/null ;;
  *.1|*.2|*.3|*.4|*.5|*.6|*.7|*.8|*.9|*.n|*.man) FILE=`file -L $1` ; # groff src
    FILE=`echo $FILE | cut -d ' ' -f 2`
    if [ "$FILE" = "troff" ]; then
      groff -s -p -t -e -Tascii -mandoc $1
    fi ;;
  *) cat $1 2>/dev/null ;;
#  *) FILE=`file -L $1` ; # Check to see if binary, if so -- view with 'strings'
#    FILE1=`echo $FILE | cut -d ' ' -f 2`
#    FILE2=`echo $FILE | cut -d ' ' -f 3`
#    if [ "$FILE1" = "Linux/i386" -o "$FILE2" = "Linux/i386" \
#         -o "$FILE1" = "ELF" -o "$FILE2" = "ELF" ]; then
#      strings $1
#    fi ;;
  esac


Next Previous Contents