I am new here and trying to install Mothur to my linux. there are two files for installation. what does it means “without readline”? Which of the followings I should choose.
64_bit executable: 64 bit mothur for Linux
64_bit executable: 64 bit mothur for Linux without readline


The readline library basically lets you scroll through previous commands using the up and down arrows, and move the cursor back through a typed command. I find it extremely helpful, because I often make typos when typing commands, so it allows an easy way to go back and repeat the command with modifications.

It’s easy to install, either with Synaptic or through apt-get, off the top of my head I think you need libreadline6 and libreadline6-dev.

sudo apt-get install libreadline6 libreadline6-dev