MQ ksh shell 脚本 - 陷阱错误

Question

我有如下的 ksh 脚本。

if [ `uname` == "AIX" ]; then
    export LIBPATH_BKP_$$=$LIBPATH
    # Trap so that it will return the original library path when script exits
    trap 1 2 3 9 15 "export LIBPATH=$LIBPATH_BKP_$$; unset LIBPATH_BKP_$$"
    export LIBPATH=/usr/mqm/lib:$LIBPATH
else # All else will be either Linux or Solaris which uses LD_LIBRARY_PATH
    export LD_LIBRARY_PATH_BKP_$$=$LD_LIBRARY_PATH
    # Trap so that it will return the original library path when script exits
    trap 1 2 3 9 15 "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH_BKP_$$; unset LD_LIBRARY_PATH_BKP_$$"
    export LD_LIBRARY_PATH=/usr/mqm/lib:$LD_LIBRARY_PATH_BKP_$$
fi

当我执行它时它说

tdestop.ksh[52]：陷阱：导出LD_LIBRARY_PATH=49648；取消设置 LD_LIBRARY_PATH_BKP_49648：错误陷阱

tdestop.ksh- 是脚本名称及其第 52 行的错误提示。

问题是什么是坏陷阱？这里出了什么问题？我不是这方面的专家。对不起，如果这个问题真的是新手。

谢谢，德维亚

Answer 1

语法是：

trap action signals...

例如

trap 'echo "I caught something"' HUP INT TERM

您颠倒了动作和信号的顺序，这就是 ksh 抱怨的原因。您应该改为使用：

trap "export LIBPATH=$LIBPATH_BKP_$$; unset LIBPATH_BKP_$$" 1 2 3 9 15

MQ ksh shell 脚本 - 陷阱错误

MQ ksh shell script - trap error

linux

shell

ksh