cd使用别名进入可执行目录

Question

I am trying to write an alias that allows me to the current directory to the executable directory. I have this so far, but it is appending my argument into the path..

alias whichcd="cd $(basename "$(dirname "$1")")"

Which I run like this:

$ whichcd test_bin
/home/user/test_binfinal_path

The test_binfinal_path is the appendage of the argument test_bin and the final path that which produce.

Answer 1

There are three problems:

1. With double quotes, the $(..) runs when you create the alias, and not when you run it.
2. Aliases can't use positional parameters like $1 .
3. From your description it sounds like you wanted dirname + which instead of basename + dirname

So use a function:

whichcd() {
  cd "$(dirname "$(which "$1")")"
}

Now whichcd ls will take you to /bin because that's where /bin/ls is.

Answer 2

I won't re-explain the things that @that other guy already explained.

I have this very same but I'm using realpath in addition to what has already been said man realpath , in case which boo points to a directory where boo is actually a symlink and the real boo is somewhereElse, it cd s to somewhereElse

goto () {
    cd $(dirname $(realpath $(which $1)))
}