linux shell中输入tab键后显示奇怪补全内容

突然发现tab键补全内容异常

# 直接按tab键
$ words=("${@:3:0}")
cword="$3"
cur="$3"
cur="$3"
cword="$3"
words=("${@:3:0}")

找到一篇文章 Terminal displays “words=(”${@:3:0}“)” when pressing TAB
里面有个回复

I think you ran bash -v which would open a new bash session in verbose mode (in the current terminal). You would just type exit once to close the current bash session and return to the previous (not verbose) bash session. Does that work? Else try closing all terminal windows and opening a new one.

回想起来，好像是有执行过 bash -v 的命令，然后执行exit退出后即恢复正常，你也可以关闭当前终端来解决。