akoizumi@mizuki: /usr/home/akoizumi cat .local/bin/em
#!/bin/sh
set -e
if ! [ -z "$(pgrep emacs)" ]; then
emacsclient -u -c "$@"
else
emacs --daemon
emacsclient -u -c "$@"
fi
! [ -z "$string" ]
can be simplified to [ -n "$string" ]
:-)