Linux Shell Remote execution Command (command line and script mode)

Shell remote execution:

　　It's often necessary to execute some shell commands remotely to other nodes, and if you ssh to each host again, it's a hassle, so you can have a centralized management approach. Describes how the two shell commands are executed remotely.

Prerequisites:

　Configure SSH password-free login

for a simple command:

If you are simply performing several commands, then:

SSH " cd/home; LS "

　　Basic can complete the common use for Remote node management, a few points to note:

1. Double quotes, must have. If you do not add double quotes, the second LS command executes locally
2. Semicolon, separated by a semicolon between two commands

How to script:

　　Some remote execution of the command content, a single command can not be completed, consider the scripting way to implement:

#!/bin/bashssh [email protected] >/dev/null2>&1 <<  /hometouch  abcdefg.txtexiteeooffechodone!

　　The remote execution of the content between "<< Eeooff" to "Eeooff", the operation on the remote machine is in it, note the point:

1. << Eeooff,ssh until the end of the Eeooff, Eeooff can be modified to other forms.
2. Redirection is intended to not show the remote output.
3. Before the end, add exit to exit the remote node