linux入命令基礎

查看系統版本：

cat /proc/version lsb_release -a uname -a

查看進程：

ps ps aux |grep #查詢字符串

殺掉進程：

 kill #標號

強制殺掉：

 kill -s 9 #標號（進程說明見附件）

命令補全

 history|grep xxx 

 命令反向查找：

ctrl+R 輸入歷史命令的部份內容

附：

附錄：各類信號及其用途

Signal     Description     Signal number on Linux x86[1]
SIGABRT     Process aborted     6
SIGALRM     Signal raised by alarm     14
SIGBUS     Bus error: "access to undefined portion of memory object"     7
SIGCHLD     Child process terminated, stopped (or continued*)     17
SIGCONT     Continue if stopped     18
SIGFPE     Floating point exception: "erroneous arithmetic operation"     8
SIGHUP     Hangup     1
SIGILL     Illegal instruction     4
SIGINT     Interrupt     2
SIGKILL     Kill (terminate immediately)     9
SIGPIPE     Write to pipe with no one reading     13
SIGQUIT     Quit and dump core     3
SIGSEGV     Segmentation violation     11
SIGSTOP     Stop executing temporarily     19
SIGTERM     Termination (request to terminate)     15
SIGTSTP     Terminal stop signal     20
SIGTTIN     Background process attempting to read from tty ("in")     21
SIGTTOU     Background process attempting to write to tty ("out")     22
SIGUSR1     User-defined 1     10
SIGUSR2     User-defined 2     12
SIGPOLL     Pollable event     29
SIGPROF     Profiling timer expired     27
SIGSYS     Bad syscall     31
SIGTRAP     Trace/breakpoint trap     5
SIGURG     Urgent data available on socket     23
SIGVTALRM     Signal raised by timer counting virtual time: "virtual timer expired"     26
SIGXCPU     CPU time limit exceeded     24
SIGXFSZ     File size limit exceeded     25