(If n is omitted, the exit status is that of the last command executed. ) 格式:$? 上一个命令的退出码。 格式:trap "commands" EXIT 退出时执行commands指定的命令。( A trap on EXIT is executed before the shell terminates.) 退出码(exit status,或exit code)的约定: 0表示成功(Zero - Success...
id last 工作 bg crontab fg jobs nohup 进程 fuser kill killall lsof pidof pidstat pkill pmap pstree 服务 service systemctl 系统资源 free iostat iotop mpstat ps sar top uptime vmstat 网络 ethtool firewall-cmd ifconfig iftop ip nc HTTP wget 证书 软件包 变量 媒体 命令执行 说明:下文中,大写为...
int sys_exit(int error_code) { return do_exit((error_code&0xff)<<8); } int do_exit(long code) { int i; // 释放代码段和数据段页表,页目录,物理地址 free_page_tables(get_base(current->ldt[1]),get_limit(0x0f)); free_page_tables(get_base(current->ldt[2]),get_limit(0x17))...
language messages zh_CN.utf-8 " 设置中文帮助 set helplang=cn " 设置为双字宽显示,否则无法完整显示如:☆ set ambiwidth=double " 总是显示状态栏 let laststatus = 2 letg:airline_theme='solarized " 设置主题,simple、dark、solarized、bubblegum 详见.vim/bundle/vim-airline-themes " 开启tab let ...
We store the status in the * low byte and the number of interrupts received since * the last read in the remainder of rtc_irq_data. */ spin_lock(&rtc_lock); rtc_irq_data += 0x100; rtc_irq_data &= ~0xff; if (is_hpet_enabled()) { /* * In this case it is HPET RTC ...
Example of Exit Status Code “1” If you pass a wrong or invalid option to the command, it will set the exit status code to a non-zero value. $ cat -a file.txt $ echo $? Output: The above exit status code “1” represents that the last executed command provided an invalid option...
void irq_exit(void) { __irq_exit_rcu(); rcu_irq_exit(); /* must be last! */ lockdep_hardirq_exit(); } static inline void __irq_exit_rcu(void) { #ifndef __ARCH_IRQ_EXIT_IRQS_DISABLED local_irq_disable(); #else lockdep_assert_irqs_disabled(); #endif account_hardirq_exit(cur...
Rocky linux 也更新到 9 了,准备试试可以用了不,还是继续用 xfce4 界面。官方有提供 xfce4 版的 Rocky linux,直接下来装就好:各个版本下载地址。题外话,...
这个级别的目标是让你使用 SSH 登录游戏。您需要连接的主机是 bandit.labs.overthewire.org,端口 2220 用户名是 bandit0,密码是 bandit0。登录后,进入 1 级页面,了解如何击败1级。 我用的是 XShell 直接按提示输入账号密码,连接成功,进入下一级 Level 0 → Level 1 ...
Get Started Cumulus Linux is installed on the switch by default. To upgrade to a different Cumulus Linux release or re-install Cumulus Linux, refer to Installation Management. To show the Cumulus Linux release installed on the switch, run the NVUE nv show system command. When starting Cumulus ...