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readpipe EXPR

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readpipe EXPR

EXPR is interpolated and then executed as a system command. The collected standard output of the command is returned. In scalar context, it comes back as a single (potentially multi-line) string. In list context, returns a list of lines (however you've defined lines with $/ or $INPUT_RECORD_SEPARATOR). This is the internal function implementing the qx/EXPR/ operator, but you can use it directly. The qx/EXPR/ operator is discussed in more detail in I/O Operators.

Source: Perl builtin functions
Copyright: Larry Wall, et al.

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