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.a: error adding symbols: File format not recognized 原因 - 操作系统(...

...format not recognized 原因error-adding-symbols-file-format-not-recognizedLinux编译链接时报错:xxx a: error adding symbols: File format not recognized。也可能出现编译能通过,但ldd报链接失败不能运行。原因是:在低版本Linux GCC上编译工程 Linux编译链接...
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内网时间同步问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术

....142 172.24.18.141 172.24.147.11 1 1 * * * /sbin/hwclock -w 目前 Linux 系统上面有两个时间喔,一个是 Linux 系统,另一个则是 BIOS 时间(真正的硬件记录的时间)! 我们可以使用 date 这个指令来手动修正目前主机的时间,不过, date 这个...
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Linux Shell脚本参数的获取方法 - 脚本技术 - 清泛IT社区,为创新赋能!

$0 (脚本名),$1-$9 参数$# 参数个数(脚本名除外) $? 取上个命令退出码(exit xx, 函数return xx)一般0成功,1失败 #!/bin/sh echo 'file name:' $0 echo 'param num: ' $# if [ $# -gt 1 ]; then echo 'the second param:' $2 fi 复制代码./param.sh file name: ./param.sh...
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统计Linux目录大小、占用空间的命令:du - 脚本技术 - 清泛IT社区,为创新赋能!

进入指定目录,执行以下命令即可查看子目录的空间占用情况,非常实用的命令。 du -h --max-depth=1 注:max-depth是子目录的层级数,1:列出所有的一级子目录,2:列出所有的二级子目录,以此类推。
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Linux 生产环境定位C++内存异常问题的思路 - 调试技术 - 清泛IT社区,为创新赋能!

1、首先,调查内存相关问题 asan 肯定是首选,不光是内存泄漏,内存越界、内存非法访问等内存异常问题。 2、开发环境可以直接套上 asan,编译时加上 -fsanitize=address,链接时加上 -lasan ,程序优雅退出即可。 3、生产环境一般...
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Linux 堆内存快照可视化,快照比较,跟踪内存变化,定位内存泄漏等问题 - ...

此定位方法偏专业,不过非常有效,是较 asan 更直观的一种内存分析方法,可以与 asan 配合使用。 export LD_PRELOAD=jemalloc.so   # 预加载 jemalloc.so 动态库,需要自行编译 export MALLOC_CONF="prof:true,prof_active:true,lg_prof_inter...
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Running Python on Windows for Node.js dependencies

... variable. The error clearly says this: gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable. And in your comment, you say you did this: set PYTHONPATH=%PYTHONPATH%;C:\My_python_lib That's nice, but that doesn't set the PYTHON variable, it sets the ...
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How do I analyze a program's core dump file with GDB when it has command-line parameters?

...007f8d939ee000 0x00007f8d93bae000 0x0000000000000000 /lib/x86_64-linux-gnu/libc-2.23.so 0x00007f8d93bae000 0x00007f8d93dae000 0x00000000000001c0 /lib/x86_64-linux-gnu/libc-2.23.so 0x00007f8d93dae000 0x00007f8d93db2000 0x00000000000001c0 /lib/x86_64-linux-gnu/lib...
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How do I purge a linux mail box with huge number of emails? [closed]

...thing like following will do the job cat /dev/null >/var/spool/mail/tomlinuxusr And yes, sorry for awakening this old thread but I felt I could contribute. share | improve this answer ...
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Use different Python version with virtualenv

I have a Debian system currently running with python 2.5.4. I got virtualenv properly installed, everything is working fine. Is there a possibility that I can use a virtualenv with a different version of Python? ...