which python # 查看python 是否指向 python2
ll /usr/bin/python
# lrwxrwxrwx. 1 root root 7 2020-03-24 03:08 /usr/bin/python -> python2
mkdir pssh # 新建目录
wget https://pypi.python.org/packages/source/p/pssh/pssh-2.3.1.tar.gz
tar zxvf pssh-2.3.1.tar.gz
cd pssh-2.3.1
python setup.py build
python setup.py install ## 需要sudo 权限
sudo python setup.py install ## 安装完成。
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
"""