Re: [Help-bash] Fastest way to join an array into a string

[Quentin L'Hours]

Hi,

On 2019-08-26 11:47 a.m., Peng Yu wrote:
> I'd like to do something similar to str.join() in python.
>
> Suppose the array is in $@, I currently use the following code to
> print the joined result ($separator contains the separator to join the
> string). Is it the fastest way to do so in bash? Thanks.

You could use "$*" which is a single string of all the args separated by 
the first letter of the IFS:

$ set a b c
$ IFS=/
$ printf '%s\n' "$*"
a/b/c