copy a line from one file to another Post: 302316185

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LEARN ABOUT OPENDARWIN

gets

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

__________________________________________________________________________________________________________________________________________________

NAME

       gets - Read a line from a channel

SYNOPSIS

       gets channelId ?varName?
_________________________________________________________________

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).

       ChannelId must be an identifier for an open channel such as the Tcl standard input channel (stdin), the return value from an invocation	of |
       open or socket, or the result of a channel creation command provided by a Tcl extension. The channel must have been opened for input.

       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 varName 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

       file(n), eof(n), fblocked(n), Tcl_StandardChannels(3)

KEYWORDS

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

Tcl									7.5								   gets(n)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

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Discussion started by: ammu

2. Shell Programming and Scripting

Help with a shell script to modify one line and copy the next 9 to same file

Discussion started by: Teroc

3. Shell Programming and Scripting

Read and copy xml line by line and preserve tab?

Discussion started by: DeuceLee

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How to copy entire file content into another file being in last line mode of vi ?

Discussion started by: presul