Buffer returns a *Pipe associated with the reader buffers.

Exec runs an external command and returns a pipe containing the output.

ExecStdout runs an external command and writes the contents of the pipe to the program's standard output.

ReadFile returns a *Pipe associated with the read all file buffers.

Args creates a pipe containing the program's command-line arguments, one per line.

Echo returns a pipe containing the supplied string.

File returns a *Pipe associated with the specified file.

FindFiles takes a directory path and returns a pipe listing all the files in the directory and its subdirectories recursively, one per line, like Unix `find -type f`.

IfExists tests whether the specified file exists, and creates a pipe whose error status reflects the result.

ListFiles creates a pipe containing the files and directories matching the supplied path, one per line.

Slice creates a pipe containing each element of the supplied slice of strings, one per line.

Pipe represents a pipe object with an associated ReadAutoCloser.