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- Synopsis:
- $write(<fd> <text>)
- $writeb(<fd> <text>)
-
- Technical:
- This function writes the given text to the given file descriptor. A
- newline is automatically appended to the text. The $writeb() variant
- does the same thing, except the newline is not automatically appended.
-
- Practical:
- This function is useful for saving information to an external file. It
- is most often used in scripts for saving configuration settings and the
- like. The $writeb() function is useful for writing to binary files, or
- for writing lines to a file incrementally.
-
- Returns:
- -1 if file descriptor does not exist
- > -1 number of bytes written (text length plus newline, if applicable)
-
- Examples:
- $write(7 blah blah) writes "blah blah" plus NL to fd "7"
- $write(foo bar) "foo" not an fd, writes nothing
- $writeb(7 blah blah) writes "blah blah" to fd "7"
- $writeb(foo bar) "foo" not an fd, writes nothing
-
- See Also:
- close(6); open(6); read(6)
-
-