How to cd into a directory with this name "-2" (starting with the hyphen)?

user151851 asked:

I have a directory named:

-2

I want to cd into it but the cd complains:

bash: cd: -2: invalid option

With no success, I’ve tried:

cd "-2"
cd '-2'
cd -2

Any solution?

Edit: no file browsers like mc, etc. available on the server.

My answer:


At least two ways:

  1. Use the -- argument.

    cd -- -2
    

    This uses a convention common to GNU tools which is to not treat anything that appears after -- as a command line option.

    As a commenter noted, this convention is also defined in the POSIX standard:

    Default Behavior: When this section is listed as “None.”, it means that the implementation need not support any options. Standard utilities that do not accept options, but that do accept operands, shall recognize "--" as a first argument to be discarded.

    The requirement for recognizing "--" is because conforming applications need a way to shield their operands from any arbitrary options that the implementation may provide as an extension. For example, if the standard utility foo is listed as taking no options, and the application needed to give it a pathname with a leading hyphen, it could safely do it as:

    foo -- -myfile
    

    and avoid any problems with -m used as an extension.

    as well as:

    Guideline 10:
    The argument -- should be accepted as a delimiter indicating the end of options. Any following arguments should be treated as operands, even if they begin with the '-' character. The -- argument should not be used as an option or as an operand.

  2. Specify the path explicitly:

    cd ./-2
    

    This specifies the path explicitly naming the current directory (.) as the starting point.

    cd $(pwd)/-2
    cd /absolute/path/to/-2
    

    These are variations on the above. Any number of such variations may be possible; I’ll leave it as an exercise to the reader to discover all of them.


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