#!/bin/bash
#extractingcommandtext_text_text_lineoptionsasparameters
help_info(){
echo"NAME"
echo"\t$0"
echo"SYNOPSIS"
echo"\t$0isashelltestaboutprocessoptions"
echo"DESCRIPTION"
echo"\toptionlike-a-bparam1-cparam2-d"
}
if[$#-lt0]
then
help_info
fi
nomal_opts_act()
{
echo-e"\n###nomal_opts_act###\n"
while[-n"$1"]
do
case"$1"in
-a)
echo"Foundthe-aoption"
;;
-b)
echo"Foundthe-boption"
echo"Theparameterfollow-bis$2"
shift
;;
-c)
echo"Foundthe-coption"
echo"Theparameterfollow-cis$2"
shift
;;
-d)
echo"Foundthe-doption"
;;
*)
echo"$1isnotanoption"
;;
esac
shift
done
}
#用shell命令自建的选项解析，可以按照自己的想法实现
#优点：自己定制，没有做不到，只有想不到
#缺点：麻烦
getopt_act()
{
echo-e"\n###getopt_act###\n"
GETOPTOUT=`getoptab:c:d"$@"`
set--$GETOPTOUT
while[-n"$1"]
do
case$1in
-a)
echo"Foundthe-aoption"
;;
-b)
echo"Foundthe-boption"
echo"Theparameterfollow-bis"$2""
shift
;;
-c)
echo"Foundthe-coption"
echo"Theparameterfollow-cis"$2""
shift
;;
-d)
echo"Foundthe-doption"
;;
--)
shift
break
;;
*)
echo"Unknowoption:"$1""
;;
esac
shift
done
param_index=1
forparamin"$@"
do
echo"Parameter$param_index:$param"
param_index=$[$param_index+1]
done
}
#用getopt命令解析选项和参数
#优点：相对与getopts来说是个半自动解析，自动组织选项和参数，用--符号将选项与参数隔开
#缺点：相对于getopts的缺点
#1.需要与set--命令配合，不是必须，需要手动shift
#2.选项参数中不支持空格如-a-bdog-c"earthmoon"-d-fparam1param2就会解析错误
getopts_act()
{
echo-e"\n###getopts_act###\n"
whilegetopts:ab:c:dARGS
do
case$ARGSin
a)
echo"Foundthe-aoption"
;;
b)
echo"Foundthe-boption"
echo"Theparameterfollow-bis$OPTARG"
;;
c)
echo"Foundthe-coption"
echo"Theparameterfollow-cis$OPTARG"
;;
d)
echo"Foundthe-doption"
;;
*)
echo"Unknowoption:$ARGS"
;;
esac
done
shift$[$OPTIND-1]
param_index=1
forparamin"$@"
do
echo"Parameter$param_index:$param"
param_index=$[$param_index+1]
done
}
#getopts命令解析选项和参数
#优点：可在参数中包含空格如：-c"earthmoon"
#选项字母和参数值之间可以没有空格如：-bdog
#可将未定义的选项绑定到?输出
#Unknowoption:?
nomal_opts_act-a-bdog-cearth-d-fparam1param2
getopts_act-a-bdog-c"earthmoon"-d-fparam1param2
getopt_act-a-bdog-cearth-d-fparam1param2
