Posix shell function for finding executable files in the $PATH

orbea ec41715f06 Use test -n everywhere 2 éve
scripts 75426af2f1 test.sh: Test if command exits with the first missing arg. 4 éve
.gitignore 508406ee4e exists.sh: Return absolute paths. 4 éve
LICENSE ec41715f06 Use test -n everywhere 2 éve
TODO 69f7c7a66a Add a TODO. 4 éve
command.sh ec41715f06 Use test -n everywhere 2 éve
exists.sh ec41715f06 Use test -n everywhere 2 éve
run.sh ec41715f06 Use test -n everywhere 2 éve
test.sh ec41715f06 Use test -n everywhere 2 éve
which.sh ec41715f06 Use test -n everywhere 2 éve