I. Common directives and permission directives
①, von Neumann architecture
②, Environment variables
③, Linux file types, Linux extensions, how Linux shell commands work, Linux Rights Management
④, Instructions:
A. Installation and login commands: Login, shutdown, halt, reboot, install, mount, Umount, Chsh, exit, last;
B. File processing commands: Files, mkdir, grep, DD, find, MV, LS, diff, Cat, ln;
C. System Management related commands: DF, top, free, quota, at, LP, AddUser, Groupadd, Kill, crontab;
D. Network operation commands: Ifconfig, IP, ping, netstat, Telnet, ftp, route, Rlogin, RCP, finger, mail, nslookup;
E. System security-related commands: passwd, Su, umask, Chgrp, chmod, Chown, chattr, sudo ps, who;
F. Other commands: Tar, unzip, Gunzip, Unarj, Mtools, man, Unendcode, UUDecode II, use of vim for GCC, g++, GDB, Ctags, makefile, make
III. concept and programming of the process
The concept of ① and process
②, Process Description: Process Control block, process identifier, process location,
③, process status
④, Process priority
⑤, Process Execution
⑥, Process Environment
⑦, real users and active users
⑧, Process creation: fork, vfork
⑨, process wait: Wait, waitpid
10, Process replacement: Execl, EXECLP, Execle, Execv, EXECVP, Execve,
11. Process Termination: Exit _exit
Iv. Inter-process communication
①, piping
②, Named pipes (FIFO)
③, XSI IPC (Message queue, semaphore, shared memory)
Five, multi-threaded programming
The concept of ①, threading
②, line program control system
A. Creating a thread pthread_create ()
B. Three ways to terminate a thread?
C. Thread waits
③, Thread separation
④, thread synchronization
A.mutex (Mutex)
B. Condition variables
C. Signal Volume
D. Producers-consumers
E. Read-write lock
VI. Signal
The concept of ① and signal
②, signal generation: three different ways
③, Signal processing method: three kinds
④, blocking signals: signal recursion, pending,
⑤, SIGCHLD
Vii. Terminal, operation control and daemon process
①, process groups, jobs, sessions
②, terminal
③, Operation control
A.session and process groups
B. Signal related to the operation
④, Guardian process
A. Creating a daemon
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