如何抑制 Fortran 90 程序中 SIGSEGV 或 SIGFPE 的输出？
我有一个 bash 脚本，它运行一个用 Fortran 90 编写的模拟程序，所有输出都重定向到一个文件。 如果程序顺利完成，我将设置一个成功参数。 代码看起来像这样：
#!/bin/bash ... echo -n "Running program..." ./sim_program >& file && success="true" if [ $success ]; then echo "OK" else echo "NOT OK" fi ...
屏幕的输出应该是“正在运行程序...正常”或“正在运行程序...不正常”。 在某些情况下，仿真程序会因浮点异常或分段错误而崩溃，并发送相应的信号（SIGSEGV/SIGFPE）。 输出可能如下所示：
:~>execute_script Running program.../path/to/script: line 232: 15350 Floating Point Exception ./sim_program >& file && success="true" NOT OK
如何抑制由于 SIGFPE 或 SIGSEGV 导致的错误输出，以便
:~>execute_script Running program... NOT OK
即使存在此类错误也能得到结果？ 我已经研究过使用陷阱，例如，
trap "" SIGSEGV SIGFPE ./sim_program >& file && success="true" trap SIGSEGB SIGFPE
但后来我仍然得到类似的信息，
:~>execute_script Running program... Floating Point Exception NOT OK
感谢任何帮助！
I have a bash script that runs a simulation program written in Fortran 90, and all output is redirected to a file. If the program finishes without problems, I set a success parameter. The code looks something like this:
#!/bin/bash ... echo -n "Running program..." ./sim_program >& file && success="true" if [ $success ]; then echo "OK" else echo "NOT OK" fi ...
The output to screen should be either "Running program... OK" or "Running program... NOT OK". In some cases, the simulation program will crash with a floating point exception or a segmentation fault, and the corresponding signals are sent (SIGSEGV / SIGFPE). The output may then look something like this:
:~>execute_script Running program.../path/to/script: line 232: 15350 Floating Point Exception ./sim_program >& file && success="true" NOT OK
How can I suppress the error output due to the SIGFPE or SIGSEGV such that I get
:~>execute_script Running program... NOT OK
even when there is such an error? I have looked into using trap, e.g.
trap "" SIGSEGV SIGFPE ./sim_program >& file && success="true" trap SIGSEGB SIGFPE
but then I still get something like
:~>execute_script Running program... Floating Point Exception NOT OK
Any help is appreciated!
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该错误消息可能会发送到 stderr。
尝试将其放在脚本的开头：
发送到 stderr 的任何内容都将发送到空设备而不是您的终端。
That error message is probably going to stderr.
Try putting this at the start of your script:
and anything send to stderr will go to the null device rather than your terminal.
我相信您的错误消息写在 stderr 上。 您需要将其重定向到/dev/null。
./sim_program 2>/dev/null
I believe your error message is written on stderr. You need to redirect it to /dev/null.
./sim_program 2>/dev/null