01-06-2003
As I test, I just signed in to an 11.0 box. Then I typed:
echo xxxxxxxxxxxx | wc -c
I actually held the x key for a long time. The result was 1988. I'm surprised that I got that close to 2048, I removed my finger from the x key when I estimated that I had about 500 characters. Oh well.
But maybe you made a similiar error? 255+ is a slippery term. Could you have had very much more than 255?
Even MAX_INPUT is 512. That means that you should be able to pre-type 512 characters and have them laying around in the terminal's input buffer ready to go for the next read the shell issues.
My usual means of generating very long command lines is something like:
gzip *
But I realized that I needed to explicitly type one in to really prove my point.
As for the find command itself, it clearly is ok. The OP had troubles building a subsequent command by cutting and pasting the output from the find command. I have no way of knowing how long the created command was.
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OPENVT(1) Linux 1.x OPENVT(1)
NAME
openvt - start a program on a new virtual terminal (VT).
SYNOPSIS
openvt [-c vtnumber] [-s] [-u] [-l] [-v] [--] command command_options
DESCRIPTION
openvt will find the first available VT, and run on it the given command with the given command options, standard input, output and error
are directed to that terminal. The current search path ($PATH) is used to find the requested command. If no command is specified then the
environment variable $SHELL is used.
OPTIONS
-c vtnumber
Use the given VT number and not the first available. Note you must have write access to the supplied VT for this to work.
-e Directly execute the given command, without forking. This option is meant for use in /etc/inittab.
-s Switch to the new VT when starting the command. The VT of the new command will be made the new current VT.
-u Figure out the owner of the current VT, and run login as that user. Suitable to be called by init. Shouldn't be used with -c or -l.
-l Make the command a login shell. A - is prepended to the name of the command to be executed.
-v Be a bit more verbose.
-w wait for command to complete. If -w and -s are used together then openvt will switch back to the controlling terminal when the com-
mand completes.
-- end of options to openvt.
NOTE
If openvt is compiled with a POSIX (GNU) getopt() and you wish to set options to the command to be run, then you must supply the end of
options -- flag before the command.
EXAMPLES
openvt can be used to start a shell on the next free VT, by using the command:
openvt bash
To start the shell as a login shell, use:
openvt -l bash
To get a long listing you must supply the -- separator:
openvt -- ls -l
HISTORY
Earlier, openvt was called open. It was written by Jon Tombs <jon@gtex02.us.es or jon@robots.ox.ac.uk>. The -w idea is from "sam".
SEE ALSO
chvt(1), doshell(8), login(1)
19 Jul 1996 V1.4 OPENVT(1)