Question

linux＆shell脚本这是我们2D球队的启动脚本，哪位大神帮帮讲解一下

#!/bin/bash

if [ -z "$LD_LIBRARY_PATH" ]
then
LD_LIBRARY_PATH=.
else
LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH
fi

export LD_LIBRARY_PATH
host="localhost"
port=6000
coach_port=6002
teamname="YuShan"

player="./YuShan_Player"
coach="./YuShan_Coach"

config="./data/player.conf"
coach_config="./data/coach.conf"
config_dir="./data/formations-dt"

opt="--player-config ${config} --config_dir ${config_dir}"
coachopt="--coach-config ${coach_config} --use_team_graphic on"

sleeptime=0.5
posnum=0
count=12

usage()
{
cat << EOF
Usage: $0 [options]

Options:
-help Show help infomation
-h (IP) Special server host address
-p (port) Special the server port number of player
-t (Name) Special teamname
-c (number) Special player amount(start with 1)
-n (number) Special player position number(Not uniform)
EOF
}

if [ $# -eq 1 -a "$1" = "-help" ]
then
usage
exit 0
fi

while getopts "h:p:t:c:n:" flag
do
case "$flag" in
h)
host=$OPTARG
;;
p)
port=$OPTARG
coach_port=$((port+2))
;;
t)
teamname=$OPTARG
;;
c)
count=$OPTARG
;;
n)
posnum=$OPTARG
;;
*)
echo "Error cmdline option"
usage
exit 1
esac
done

opt="${opt} -h ${host} -p ${port} -t ${teamname}"
coachopt="${coachopt} -h ${host} -p ${coach_port} -t ${teamname}"

# the limit of core dump file size
ulimit -f unlimited

if [ $posnum -ne 0 ]
then
case $posnum in
1)
${player} ${opt} -g -n $posnum &
;;
12)
${coach} ${coachopt} &
;;
*)
${player} ${opt} -n $posnum &
;;
esac

exit 0
fi

i=1

while [ ${i} -le ${count} ]
do
case ${i} in
1)
echo "team $teamname: Start Player $i"
${player} ${opt} -g &
;;
12)
echo "team $teamname: Start Coach"
${coach} ${coachopt} &
;;
*)
echo "team $teamname: Start Player $i"
${player} ${opt} &
;;
esac

sleep $sleeptime
i=$((i+1))
done

exit 0

Answer 1

有点长。。。你说哪里不明白吧。针对性给你解释