一、前言
1.1 安装pssh和pscp
pip install pssh
注意,安装pssh一定要用python2,用python3运行会出错,所以这里采用的是
pip
安装而不是pip3
在通过ssh协议远程服务器前,建议使用公钥的形式远程,不建议直接在命令行使用密码远程。
生成公私钥:ssh-keygen
复制公钥到目标服务器:ssh-copy-id username@ip
1.2 了解ssh的相关用法
1.3 了解scp的相关用法
二、pssh
[root@Test ~]# pssh --help
Usage: pssh [OPTIONS] command [...]
Options:
--version show program's version number and exit
--help show this help message and exit
-h HOST_FILE, --hosts=HOST_FILE
hosts file (each line "[user@]host[:port]")
-H HOST_STRING, --host=HOST_STRING
additional host entries ("[user@]host[:port]")
-l USER, --user=USER username (OPTIONAL)
-p PAR, --par=PAR max number of parallel threads (OPTIONAL)
-o OUTDIR, --outdir=OUTDIR
output directory for stdout files (OPTIONAL)
-e ERRDIR, --errdir=ERRDIR
output directory for stderr files (OPTIONAL)
-t TIMEOUT, --timeout=TIMEOUT
timeout (secs) (0 = no timeout) per host (OPTIONAL)
-O OPTION, --option=OPTION
SSH option (OPTIONAL)
-v, --verbose turn on warning and diagnostic messages (OPTIONAL)
-A, --askpass Ask for a password (OPTIONAL)
-x ARGS, --extra-args=ARGS
Extra command-line arguments, with processing for
spaces, quotes, and backslashes
-X ARG, --extra-arg=ARG
Extra command-line argument
-i, --inline inline aggregated output and error for each server
--inline-stdout inline standard output for each server
-I, --send-input read from standard input and send as input to ssh
-P, --print print output as we get it
Example: pssh -h hosts.txt -l irb2 -o /tmp/foo uptime