How to get a variable to have the current dir path? [duplicate]

问题

This question already has answers here:

How do I set a variable to the output of a command in Bash? (14 answers)

Closed 4 years ago.

I have a really simple function in bash script that tells me the current directory. However it gives the error bash: =/home/users/abc: No such file or directory $currentdir is empty.

Why is this happening? I also tried

$currentdir=`pwd` 

and that didn't work too.

This is a similar question Bash: current directory variable and I tried this but it didn't solve my problem.

xpwd() {
    $currentdir=$(pwd)
    echo "current dir is $currentdir"
}

回答1:

When you want to set a variable, you don't use the $:

currentdir=`pwd`

The $ is for when you want to do a variable substitution.

回答2:

Assigning to a variable is without the '$' sign. Using the value is with the '$' sign.

currentdir=`pwd`

回答3:

try:

currentdir=`pwd`

(remove the $)

来源：https://stackoverflow.com/questions/35189157/how-to-get-a-variable-to-have-the-current-dir-path