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Full Discussion: Command line buffer limit?
Top Forums UNIX for Dummies Questions & Answers Command line buffer limit? Post 33469 by Perderabo on Monday 6th of January 2003 09:31:28 PM
Old 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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line(1) 						      General Commands Manual							   line(1)

NAME
line - read one line from user input SYNOPSIS
timeout] DESCRIPTION
copies one line (up to a new-line) from the standard input and writes it on the standard output. It returns an exit code of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal. Options recognizes the following command-line option: Timeout after timeout seconds where timeout is an integer value (if a non-integer value is specified, it is converted to an integer; i.e., rounded down). A blank is required between and the timeout argument. This option is not documented in POSIX and other industry standards, and should not be used in portable applications. EXTERNAL INFLUENCES
International Code Set Support Single- and multi-byte character code sets are supported. EXAMPLES
The following lines in a shell script prompt for a file name and display information about the file: To limit the response time to 10 seconds, use the form: then test for no response. If no response occurs before timeout expires, a default behavior should be provided. WARNINGS
This command is likely to be withdrawn from X/Open standards. Applications using this command might not be portable to other vendors' sys- tems. As an alternative is recommended. SEE ALSO
sh(1), read(2). STANDARDS CONFORMANCE
line(1)
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