"event not found" trying to export a string with !0

Question

When I try to use export password="abcd!0", the base gave me an error: !0: event not found

Any help to solve this?

`!` pulls up bash history, in your case, command #2 in that history — Marc B, Oct 04 '16 at 22:01
If you don't use the feature this represents -- turn off history expansion, as by putting `set +H` in your `.bashrc`. With modern GNU `readline`, it's very rarely useful. — Charles Duffy, Oct 04 '16 at 22:03

score 9 · Accepted Answer · answered Oct 04 '16 at 22:01

9

! is a special character to bash it is used to refer to previous commands; eg,

!rm

will recall and execute the last command that began with the string "rm"

Try:

export password="abcd\!1"

or

 export password='abcd!1'

answered Oct 04 '16 at 22:01

Oz Bar-Shalom

You might also suggest `set +H` in one's `~/.bashrc` to turn this off, making strings starting with `!` behave the same between the interactive command line and scripts. – Charles Duffy Oct 04 '16 at 22:04

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