JCShell Command-优快云博客

本文链接：https://blog.youkuaiyun.com/alburt2008/article/details/8747820

JCShell是一款命令行工具，提供了变量设置、流程控制（如if、while、for循环）以及特定命令如/atr和/send。/atr用于重置卡片并获取ATR，而/send命令用于发送APDU，支持不同的选项进行自定义操作。

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/set-var x1 Hello #设置变量
/echo ${x1} #控制台打印出 Hello

${0} #数字0表示脚本文件

${1}# 表示第一个参数以此类推2表示第二个参数

流程控制

if expression
...
elseif expression
...
else
...
end
Example:
if ${3}
/echo "Called with at least 3
arguments"
elseif ${2}
/echo "Called with two arguments"
elseif ${1}
/echo "Called with one argument"
else
/echo "Called without arguments"
end

while expression
...
end
Example:
/set-var x 3
while ${x}
/echo ${x}
/set-var x $(/expr ${x} - 1)
end

for varname words
...
end
Example:
for num 1 2 4 8 16
/echo ${num}
end

/atr

Reset inserted card and get ATR.

/send
usage: /send [-r|--raw][nad=NAD][-t|--timeout timeout] apdu [pattern..]
-r|--raw data is sent in raw mode (not encapsulated in any protocol)
nad=NAD APDU is sent to this node address (T=1)
NAD node address (high nibble=DAD, low=SAD)
-t|--timeout timeout
max time to wait for response data in raw mode
timeout time unit is device-dependent
apdu Data syntax: HEX[|CHARS[|HEX...]]

后续用到的时候添加