NAME<\/a> ______________________________________________________________________________<\/p>\n gets \u2212 Read a line from a channel<\/p>\n gets<\/b> channelId<\/i> ?varName<\/i>? ______________________________________________________________________________<\/p>\n This command reads the next line from channelId<\/i>, returns everything in the line up to (but not including) the end-of-line character(s), and discards the end-of-line character(s).<\/p>\n ChannelId<\/i> must be an identifier for an open channel such as the Tcl standard input channel (stdin<\/b>), the return value from an invocation of open<\/b> or socket<\/b>, or the result of a channel creation command provided by a Tcl extension. The channel must have been opened for input.<\/p>\n If varName<\/i> is omitted the line is returned as the result of the command. If varName<\/i> 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.<\/p>\n 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 channelId<\/i> is in non-blocking 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<\/i> is specified and an empty string is returned in varName<\/i> because of end-of-file or because of insufficient data in non-blocking mode, then the return count is -1. Note that if varName<\/i> 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<\/b> and fblocked<\/b> commands can be used to distinguish these three cases.<\/p>\n This example reads a file one line at a time and prints it out with the current line number attached to the start of each line.<\/p>\n set chan [open “some.file.txt”] file(n), eof(n), fblocked(n), Tcl_StandardChannels(3)<\/p>\n blocking, channel, end of file, end of line, line, non-blocking, read<\/p>\n gets \u2212 Read a line from a channel <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3783,1],"tags":[2055,2635],"class_list":["post-6198","post","type-post","status-publish","format-standard","hentry","category-n-comandos-tcl-tk","category-sin-categoria","tag-gets","tag-mann"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/6198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/comments?post=6198"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/6198\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=6198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=6198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=6198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
SYNOPSIS<\/a>
DESCRIPTION<\/a>
EXAMPLE<\/a>
SEE ALSO<\/a>
KEYWORDS<\/a> <\/p>\n
\nNAME <\/a> <\/h2>\n
SYNOPSIS <\/a> <\/h2>\n
DESCRIPTION <\/a> <\/h2>\n
EXAMPLE <\/a> <\/h2>\n
set lineNumber 0
while {[gets<\/b> $chan line] >= 0} {
puts “[incr lineNumber]: $line”
}
close $chan<\/p>\nSEE ALSO <\/a> <\/h2>\n
KEYWORDS <\/a> <\/h2>\n
\n","protected":false},"excerpt":{"rendered":"