#! /bin/sh #================================================================ # estgzhtml # Decompress a gzipped or zipped file of plain text or HTML. #================================================================ # set variables LANG=C ; export LANG LC_ALL=C ; export LC_ALL progname="estgzhtml" tmpfile="/tmp/$progname-$$" nulldev="/dev/null" extlist='.txt.gz,.asc.gz,.txt.zip,.asc.zip,.html.gz,.htm.gz,.html.zip,.htm.zip' infile="$1" outfile="$2" # show help message if [ "$1" = "--help" ] then printf 'Decompress a gzipped or zipped file of plain text or HTML.\n' printf '\n' printf 'Usage:\n' printf ' %s [infile] [outfile]\n' "$progname" printf ' estindex register -xsuf %s \\\n' "$extlist" printf ' text/html %s casket\n' "$progname" printf '\n' exit 0 fi # function to remove the temporary file tmpclean(){ rm -rf "$tmpfile" } # function to create the temporary file for input output(){ if [ -z "$outfile" ] then cat else cat >> "$outfile" fi } # set the exit trap trap tmpclean 1 2 3 13 15 # check the input file existence if [ -n "$infile" ] && [ ! -f "$infile" ] then printf '%s: %s: no such file\n' "$progname" "$infile" exit 1 fi # create the temporary file if [ -z "$infile" ] then cat > "$tmpfile" infile="$tmpfile" fi # output the result if printf '%s' "$infile" | egrep '\.(html|htm)\.(gz|zip)$' > "$nulldev" || printf '%s' "$ESTORIG" | egrep '\.(html|htm)\.(gz|zip)$' > "$nulldev" then gzip -cd "$infile" | output else printf '\n\n

\n' | output
  gzip -cd "$infile" | sed -e 's/&/\&/g' -e 's//\>/g' |
    output
  printf '

\n\n\n' | output fi # clean up the temporary directory tmpclean # exit normally exit 0 # END OF FILE