自动化运维之pssh&pscp

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

三、pscp