scripts/nxv at master · jzu/scripts · GitHub

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#!/bin/bash

# Networked XV - jzu 2006 - WTFPL
# If you need xv, you need this.

if [ $# -eq 0 ]
then
  echo Usage: `basename $0` '[-xv_options...]' url 1>&2
  exit 1
fi

NARG=$#
OPTS="-nolimits "
for i in `seq 1 $(($NARG-1))`
do
  OPTS="$OPTS $1"
  shift
done
URL=$1
FILE=/tmp/$$-`basename $URL`
FILE=`echo $FILE \
      | sed "s/\?.*//"`

rm -f $FILE
echo $URL \
| grep "://" > /dev/null 2>&1
if [ $? -eq 0 ]
then
  wget --no-check-certificate -O $FILE $URL > /dev/null 2>&1
else
  cp $URL $FILE
fi
WGETSTATUS=$?

file $FILE \
| grep "PNG image" &> /dev/null
PNGSTATUS=$?

if [ $PNGSTATUS -eq 0 ]
then
  convert $FILE /tmp/nxvtmpfile-$$.gif
  /bin/mv -f /tmp/nxvtmpfile-$$.gif $FILE
  xv $OPTS $FILE
  /bin/rm $FILE
else
  if [ $WGETSTATUS -eq 0 ]
  then
    xv $OPTS $FILE
    JPEGSTATUS=$?
    if [ $JPEGSTATUS -eq 255 ]
    then
      convert $FILE /tmp/nxvtmpfile-$$
      /bin/mv -f /tmp/nxvtmpfile-$$ $FILE
      xv $OPTS $FILE
    fi
    rm -f $FILE
  else
    echo $URL not found 1>&2
    rm -f $FILE
    exit 2
  fi
fi