shnsplit on Ubuntu 14.04
sudo add-apt-repository -y ppa:flacon
sudo apt-get update
sudo apt-get install -y flacon
shntool split -f *.cue -o flac -t '%n - %p - %t' *.ape
flacon is a GUI for shntool, but it comes with all the codecs it needs... otherwise I got the error:
shnsplit: warning: failed to read data from input file using format: [ape]
shnsplit: + you may not have permission to read file: [example.ape]
shnsplit: + arguments may be incorrect for decoder: [mac]
shnsplit: + verify that the decoder is installed and in your PATH
shnsplit: + this file may be unsupported, truncated or corrupt
shnsplit: error: cannot continue due to error(s) shown above
In particular, the flacon PPA furnishes the mac package (Monkey's Audio Console), on which flacon depends, which has the mac CLI tool, which seems to be the main missing ingredient.