Sponsored Content
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.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

sendmail message body buffer limit?

when sending the contents of a ascii file to the body of an email then sending it off. it seems sendmail is breaking up the lines with a "!" thus ruining the data. Has this ever happened to anyone? i am guessing there is a line buffer limit in either the mail command or in sendmail itself. ... (3 Replies)
Discussion started by: Optimus_P
3 Replies

2. Shell Programming and Scripting

grep line length limit

Hi Friends, I am having a funny problem with grep. When I run grep 'expr' file.txt things work fine. But when try to get the line number using the -n option, i.e, grep -n 'expr' file.txt I get a message, "grep: 0652-226 Maximum line length of 2048 exceeded." If the line has more than... (3 Replies)
Discussion started by: hnhegde
3 Replies

3. Shell Programming and Scripting

How to Monitor printer buffer using unix command

Hi, I have 13jobs waiting in a printer queue.I am try to get the status and number of jobs using lpstat but i cant see any job is waiting in queue.i think those jobs are in printer buffer.is there any way to get the status of printer buffer too using unix command.please correct me if i am wrong. i... (1 Reply)
Discussion started by: sagii
1 Replies

4. UNIX for Advanced & Expert Users

How to limit the search to 'n' occurrences within a line

Hello All, I am trying to search one pattern across a file and then print it. But i need to delimit the search per line to 2 occurrences. How do i do that? Regards. (9 Replies)
Discussion started by: Linuxee
9 Replies

5. Shell Programming and Scripting

Problem with awk awk: program limit exceeded: sprintf buffer size=1020

Hi I have many problems with a script. I have a script that formats a text file but always prints the same error when i try to execute it The code is that: { if (NF==17){ print $0 }else{ fields=NF; all=$0; while... (2 Replies)
Discussion started by: fate
2 Replies

6. Programming

Is there a limit for a code line length in C?

Is there any stabdard limitation on size of a code line in C code? I am interesting in UNIX limitation, particulary on SUN. Thanks! (8 Replies)
Discussion started by: alex_5161
8 Replies

7. UNIX for Dummies Questions & Answers

Vim external command output to new buffer

Hi, From inside Vim, I'm looking for a way to use the contents of the current buffer, pass it to an external executable, and then return the output from the executable into a new Vim buffer. I know that I can do something like %!<executable>, but that will overwrite the contents of the... (3 Replies)
Discussion started by: konfushus
3 Replies

8. Shell Programming and Scripting

Ignore the 255 character limit of command line

Hi I would just like to ask if there is a way for UNIX to ignore/overcome the 255 character limit of the command line? My problem is that I have a really long line of text from a file (300+ bytes) which i have to "echo" and process by adding commands like "sed" to the end of the line, like... (5 Replies)
Discussion started by: agentgrecko
5 Replies

9. Programming

Limit line for perl

Hey guys, can help me out with this? How do i limit output for xml to 50 character? i tried *below* but doesnt work, it still print more than 50 characters. Thanks in advance printf "%-50s", "$testline\n"; (4 Replies)
Discussion started by: Nick1097
4 Replies

10. UNIX for Beginners Questions & Answers

Single line archive log files command if exceed certain limit in Linux

Hello Guys, Is there a single line archive command to zip or tar log files which is larger than certain size limit ? Do let me know if there is any. Thanks (7 Replies)
Discussion started by: UnknownGuy
7 Replies
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)
All times are GMT -4. The time now is 03:05 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy