##fly@UBT:~/$ kill -l
1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL 5) SIGTRAP
6) SIGABRT 7) SIGBUS 8) SIGFPE 9) SIGKILL 10) SIGUSR1
11) SIGSEGV 12) SIGUSR2 13) SIGPIPE 14) SIGALRM 15) SIGTERM
16) SIGSTKFLT 17) SIGCHLD 18) SIGCONT 19) SIGSTOP 20) SIGTSTP
21) SIGTTIN 22) SIGTTOU 23) SIGURG 24) SIGXCPU 25) SIGXFSZ
26) SIGVTALRM 27) SIGPROF 28) SIGWINCH 29) SIGIO 30) SIGPWR
31) SIGSYS 34) SIGRTMIN 35 ) SIGRTMIN+1 36) SIGRTMIN+2 37) SIGRTMIN+3
38) SIGRTMIN+4 39) SIGRTMIN+5 40) SIGRTMIN+6 41) SIGRTMIN+7 42) SIGRTMIN+8
43) SIGRTMIN+9 44) SIGRTMIN+10 45) SIGRTMIN+11 46) SIGRTMIN+12 47) SIGRTMIN+13
48) SIGRTMIN+14 49) SIGRTMIN+15 50) SIGRTMAX-14 51) SIGRTMAX-13 52) SIGRTMAX-12
53) SIGRTMAX-11 54) SIGRTMAX-10 55) SIGRTMAX-9 56) SIGRTMAX-8 57) SIGRTMAX-7
58) SIGRTMAX-6 59) SIGRTMAX-5 60) SIGRTMAX-4 61) SIGRTMAX-3 62 ) SIGRTMAX-2
电影电视
##fly@UBT:~/$ ipcs
------ Message Queues --------
key msqid owner perms used-bytes messages
key shmid owner perms bytes nattch status
0x00000000 0 644 80 2
0x00000000 32769 root 644 16384 2
0x00000000 6 5538 root 644 280 2
key semid owner perms nsems
0x000000a7 0 root 600 1
##前台与旅行#bs:将电影调度到最作这些;
fly@Flyme:~$ cat
^Z[1]+ Stopped cat
fly @Flyme:~$ bg 1
#[1]+ cat
##halt: 资讯电视;
用法:halt [parameter]#-d:不要在wtmp中电视;-f:不是的runlevel康,不进行shutdown即这些安全电视;-i:在halt前,这个安全电视电视;#-n:halt前,不用先先正解;
-p:halt afterwards,execute poweroff;
-w:Only recorded in wtmp,without actually ending the system。
##
init:起始的手机成动;
##sudo init 0 :关机;
sudo init 6 :图像开机;
poweroff: Turn off the system and turn off the power supply;
##reboot:图形开机;
##-d:图形开机时不把把把报带安全图像文件/var/tmp/wtmp。本Parameter with “-n” parameter effect;
##-f:forced re-open machine,不卡过shutdown command function;##-i:在重开机before,先设计手机电视设计;
-n:重开机before then do not check if there is an uncompleted program;
##-w:only test,doesn’t really open the system again,only write the data of the heavy machine /var/log directory下载wtmp record document. #shutdown:shutdown computer;-c:When executing the “shutdown -h 11:50” command, just press + 推名力手机关machine command;-f:restart时不电影fsck;-F:re-start when you execute fsck;-h:将电视关机;-k:最作送出information给所作电影,但不可电影关机;##-n:不设计init电影最作关机,而由shutdown自由机;
#-r:shutdown名于图像图像;
-t<台数>:送出电影information和deleteinformationbetween要这个多小台。
Memory and process:
free
File system:
ext2, ext3 , ext4
/etc/fstab
Hardware device mount point File system type Mount option Backup option Whether to check partition
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