Posix shell function for finding executable files in the $PATH

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