linux log all commands to syslog

A. Linux modification profile file changed the wrong way, restore the method in the change, the problem, in addition to the CD other than the basic command can not be used, Even VI can not use, the Internet check the next, with export path=/usr/bin:/usr/sbin:/bin:/sbin:/usr/x11r6/bin, and then you can use the command,Speed with VI to change the profile back, return to normal. shell commands are basical

There are two types of interactive logins implemented under Linux:1. SSH No password authentication methodThe client uses Ssh-keygen to generate the key pair and copies the public key to the server (Authorized_keys) , SSH provides public key login, when SSH accesses the server, the server first looks for the client's public key in this machine, then compares the public key sent by the client, and if it is consistent, encrypts the client with the publi

directory. 10. Cut (rename) file or directory : MV [ file or directory ]Note: The cut and move and delete is different, in the directory operation, not in the add- R, if the second parameter is a file, then the completion of the renaming command, there is only one file, that is, the following file, if the second parameter is a directory, then the completion of the Cut command, The original file or directory is moved to the destination directory. Renaming command: Thetmp directory originally has

Task Processing Commands:(1) Ctrl + Z hangs up the process and puts it in the background(2) Jobs shows the currently paused process(3) BG%N enables the nth task to run in the background (with a space before%)(4) FG%N to enable nth tasks to run in the foregroundThe default BG,FG indicates the last process action without%n!Log View commands(1) Use of tailTail-f App