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gets(n)			     Tcl Built-In Commands		       gets(n)

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NAME
       gets - Read a line from a channel

SYNOPSIS
       gets channelId ?varName?
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DESCRIPTION
       This  command reads the next line from channelId, returns everything in
       the line up to (but not including) the  end-of-line  character(s),  and
       discards	 the end-of-line character(s).	If varName is omitted the line
       is returned as the result of the command.  If varName is specified then
       the line is placed in the variable by that name and the return value is
       a count of the number of characters returned.

       If end of file occurs while scanning for an end of  line,  the  command
       returns	whatever  input	 is available up to the end of file.  If chan‐
       nelId is in nonblocking mode and there is not  a	 full  line  of	 input
       available, the command returns an empty string and does not consume any
       input.  If varName is specified and an empty string is returned in var‐
       Name  because  of  end-of-file  or because of insufficient data in non‐
       blocking mode, then the return count is -1.  Note that  if  varName  is
       not specified then the end-of-file and no-full-line-available cases can
       produce the same results as if there were an input line consisting only
       of  the end-of-line character(s).  The eof and fblocked commands can be
       used to distinguish these three cases.

SEE ALSO
       eof(n), fblocked(n)

KEYWORDS
       blocking, channel, end of file, end of line, line, nonblocking, read

Tcl				      7.5			       gets(n)

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