shell实现拷贝进度条

时间：2008-05-03 来源：剑心通明

特别感谢作者:idkey兄

代码:
#!/bin/sh
# Last modified: 2003年07月05日星期六 00时09分44秒 [test]

SOURCE=$1
TARGET=$2

#CP=./fack_cp
CP=cp

$CP "$SOURCE" "$TARGET" &
CPID=$!

isalive(){
      out=`ps -p $1 2> /dev/null`
      return $?
}

while [ 1 ]; do {
      SSIZE=`/bin/ls -l $SOURCE | gawk "{print \\\$5}"`
      if [ -f $TARGET ]; then
            TSIZE=`/bin/ls -l $TARGET | gawk "{print \\\$5}"`
      else
            TSIZE="0"
      fi
      PERCENT=`echo "scale=2; $TSIZE/$SSIZE*100" | bc -l`
      RATE=`echo "scale=0; 63*$PERCENT/100" | bc -l`
      BLUE="\\033[3;44m"
      NORMAIL="\\033[0;39m"

      BAR=$BLUE
      i=0
      while [ $i -le 62 ]; do
            [ $i = $RATE ] && BAR=$BAR"\\033[7;39m"
            BAR=$BAR" "
            let i=$i+1
      done
      BAR=$BAR$NORMAIL
      echo -en "\r$BAR ${PERCENT}%"
      if ! isalive "$CPID"; then echo -en "\n"; exit; fi
      sleep 1
}
done

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