linux系统上面使用tab补全命令

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tab的模块脚本

[root@centos7 ~]# cat tab.py
#!/usr/bin/python3.6
# python startup file
import sys
import readline
import rlcompleter
import atexit
import os
# tab completion
readline.parse_and_bind('tab:complete')
# history file
histfile = os.path.join(os.environ['HOME'],'.pythonhistory')
try:
readline.read_history_file(histfile)
except IOError:
pass
atexit.register(readline.write_history_file,histfile)
del os, histfile, readline,rlcompleter