func ExamplePipeWith() {
upper := sh.Cmd("tr", "[:lower:]", "[:upper:]")
grep := sh.Cmd("grep")
fmt.Print(sh.PipeWith(SWCrawl, grep("far"), upper()))
// output:
// A LONG TIME AGO, IN A GALAXY FAR, FAR AWAY....
}
func ExamplePipe() {
echo := sh.Cmd("echo")
// note, you can "bake in" arguments when you create these functions.
upper := sh.Cmd("tr", "[:lower:]", "[:upper:]")
grep := sh.Cmd("grep")
// Equivalent of shell command:
// $ echo Hi there! | grep -o Hi | wc -w
fmt.Print(sh.Pipe(echo(SWCrawl), grep("far"), upper()))
// output:
// A LONG TIME AGO, IN A GALAXY FAR, FAR AWAY....
}
func ExampleCmd() {
echo := sh.Cmd("echo")
fmt.Print(echo("Hi there!"))
// output:
// Hi there!
}
func TestString(t *testing.T) {
ex := sh.Cmd("thiswontwork")()
s := ex.String()
expected := "exec: \"thiswontwork\": executable file not found in $PATH"
if s != expected {
t.Errorf("expected %q, got %q", expected, s)
}
}
func ExampleRead() {
grep := sh.Cmd("grep")
name := "ExampleReadTest"
f, cleanup := openTempFile(name, SWCrawl)
defer cleanup()
fmt.Print(sh.Pipe(sh.Read(f), grep("far")))
// output:
// A long time ago, in a galaxy far, far away....
}
func ExampleDump() {
grep := sh.Cmd("grep")
name := "ExampleDumpTest"
defer writeTempFile(name, SWCrawl)()
// Equivalent of shell command
// $ cat ExampleDumpTest | grep far
fmt.Print(sh.Pipe(sh.Dump(name), grep("far")))
// output:
// A long time ago, in a galaxy far, far away....
}
func Example_String() {
echo := sh.Cmd("echo")
executable := echo("Hi there!")
// Since we're passing the output into a function expecting a string, we
// have to call String() on the output of the command.
var s string = executable.String()
fmt.Print(s)
// output:
// Hi there!
}