shell 异常捕获

[十一路]

在shell 中执行 .sh或.jar
捕获是否执行错误
trap "" err 这样可以实现

那么我要如何获取错误的内容，然后记录日志

[nswcfd]

If a sigspec is ERR, the command arg is executed whenever a simple command has a non-zero exit status, sub- ject to the following conditions. The ERR trap is not executed if the failed command is part of the command list immediately following a while or until keyword, part of the test in an if statement, part of a command executed in a && or ││ list, or if the command’s return value is being inverted via !. These are the same conditions obeyed by the errexit option.

[nswcfd]

trap my_error_callback ERR，只能捕获简单命令（simple command）。

#!/bin/bash

my_error_callback()
{
        #echo "in_call_back: $*"
        i=0
        while true; do
                echo -n '##############'
                caller $((i++)) || break
        done
        echo
}

trap my_error_callback ERR

my_error_test()
{
        error_here
}

echo 1
error_cmd 2
echo 3
my_error_test