$ ps -ef | more To view current running processes in a tree structure. H option stands for process hierarchy. $ ps -efH | more 23. free command examples This command is used to display the free, used, swap memory available in the system. Typical free command output. The output is dis...
The example below display the process Id and commands in a hierarchy. –forest is an argument to ps command which displays ASCII art of process tree. From this tree, we can identify which is the parent process and the child processes it forked in a recursive manner. $ ps -e -o pid,ar...
current_PID=$$ #ps -ef | grep"java" | grep -v "grep" | awk '{print ps -aux | grep"/ust/sbin/httpd" | grep -v "grep" | awk '{print for pid in `cat/tmp/${current_PID}.txt` do { echo "kill -9 $pid" kill -9 $pid } done rm -f /tmp/${current_PID}.txt 启动某...
创建/修改密码:passwd 密码输入后不显示,新密码要输入两次,匹配成功才算是修改密码成功 UNIX命令格式:命令 选项 参数 快捷键:ctrl+c:中断当前命令执行并返回shell ctrl+d:终端传输或结束文本编辑 ctrl+s:临时中断命令的屏幕输出 ctrl+q:恢复由ctrl+s的临时中断 ctrl+u:清除输入的整个命令行 backspace:删除某个错...
ps aux |egrep inetd 输出信息内容: PID Terminal 如无相应终端则为- cpu time UserID or Username 进程启动时间或日期 进程状态(Stat: S(leep) R(unnable) D(uninterrupt sleep) Z(ombie) W 进程没有驻留页面, N: 进程的nice值为负值 5.2 kill kill [-signal] PID kill -l 列出可用信号量 常用...
ps -aux|sort +5n 将程序放在前后台执行 cp file1 file2 & &与ctrl+z你可以使用&或ctrl+z来将命令放在后台执行. fg 是将放在后台执行的程序再放回前台. jobs 15.dd命令备份 dd if="input_file" of="out_file"bs="block_size" count="number" ...
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME tcsh 29029 eedcoba cwd DIR 0,18 12288 1048587 /home/eedcoba (guam:/home) lsof 29140 eedcoba cwd DIR 0,18 12288 1048587 /home/eedcoba (guam:/home) About an application: ps ax | grep Xorg | awk '{print $1}' ...
12 if(system("ps -o pid,ppid,state,tty,command")<0) 13 err_sys("system() error"); 14 15 exit(0); 16 } 以下是结果: 3435 3434 Z pts/0 [test] <defunct> 这里的Z就表示这是一个僵尸进程了。 6.race condition.当fork后生成子进程后,我们并不知道是子进程先执行还是父进程先执行,这时就...
alias 对命令重命名 如：alias showmeit="ps -aux" ，另外解除使用unaliax showmeit kill 杀死进程，可以先用ps 或 top命令查看进程的id，然后再用kill命令杀死进程。3.打包压缩相关命令 tar: 打包压缩 -c 归档文件 -x 压缩文件 -z gzip压缩文件 -j bzip2压缩文件 -v ...
The example below shows a UNIX application that forks to create a child process and then runs the UNIX ps command by using execlp. Creating a process in UNIX using fork and exec Copy #include <unistd.h> #include <stdio.h> #include <sys/types.h> int main() { pid_t pid; printf("...