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1.76.2 FileStream class: standard streams

stderr
Answer a FileStream that is attached the Smalltalk program's standard error file handle, which can be used for error messages and diagnostics issued by the program.


stdin
Answer a FileStream that is attached the Smalltalk program's standard input file handle, which is the normal source of input for the program.


stdout
Answer a FileStream that is attached the Smalltalk program's standard output file handle; this is used for normal output from the program.