Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Maximum command length in bourne shell
Top Forums Shell Programming and Scripting Maximum command length in bourne shell Post 302365929 by TonyLawrence on Wednesday 28th of October 2009 11:00:07 AM
Old 10-28-2009
Quote:
Originally Posted by radoulov
You can also use getconf:

Code:
getconf ARG_MAX

:-)

I started chuckling when I read the cpp solution and half expected to see it followed by a "Why not 'grep ARG_MAX /usr/include/limits.h '?" post.

It's funny how sometimes we use the tools we are most used to - if we use a screwdriver every day, sometimes we'll use the handle end as a hammer.

However, "getconf" isn't always the right tool either because it doesn't necessarily have whatever it is you want. The man page explains what it will know about; and on recent Linuxes you can do "getconf -a". That can help when you aren't sure about whether or not to use a leading underscore or exactly what the constant is called - just

Code:
getconf -a | grep CPUTIME

, for example.

In particular,

Code:
getconf -a | grep MAX

can be educational and enlightening.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Maximum file name length

Hi folks, Can anybody tell me whether there is any limit on the file name length and directory name length in UNIX. (4 Replies)
Discussion started by: rkkiran
4 Replies

2. UNIX for Dummies Questions & Answers

Maximum Command Length for Korn shell

What is the maximum size of a command which can be given in telnet command prompt in unixfor Korn shell? (2 Replies)
Discussion started by: miltony
2 Replies

3. UNIX for Dummies Questions & Answers

Maximum Command Length

What is the maximum size of a command which can be given in telnet command prompt in unix? (2 Replies)
Discussion started by: miltony
2 Replies

4. UNIX for Dummies Questions & Answers

what is the maximum length of th os-command line in Unix.

Hi All, I didn't find any thread that match this question so I hope it's not redundant. I am totally new to Unix. I want to know what is the maximum length of the os-commandline in Unix. Will it cause any problem if I run any application whose total path length is much longer than 256... (2 Replies)
Discussion started by: kumardesai
2 Replies

5. UNIX for Dummies Questions & Answers

Maximum length of a path given as an argument to a shell script

hi, I am using solaris10. I have to write a bourne shell script, which copies files for the said destination path which is passed as an argument to the script. it looks like this myscript.sh /var/test -->destination path now i would like to know what is the maximum length i can... (3 Replies)
Discussion started by: raghu.amilineni
3 Replies

6. Shell Programming and Scripting

what is the maximum length of a unix shell variable which can be can passed to plsql

what is the maximum length of a unix shell variable which can be can passed to plsql variable:( (1 Reply)
Discussion started by: alokjyotibal
1 Replies

7. Shell Programming and Scripting

Is there any command in the Bourne shell?

Hi, The problem I have is that I want to create a list of folders whose names are read from a text file but the file names are in decimal. Each letter consists of an octet and the end of the folder name is defined by the white space character (0032) For example, we have in the text... (2 Replies)
Discussion started by: Gengis-Kahn
2 Replies

8. AIX

Alias Command in Bourne Shell

Hi My Unix sever is AIX 5.3. My Login shell ( using echo $SHELL) is /bin/sh implying it is a Bourne Shell. My Question is that i am still able to use Alias command to create/retrieve aliases. I have read in several sites on Unix online that the Bourne Shell does not support Aliases but... (12 Replies)
Discussion started by: pchegoor
12 Replies

9. Shell Programming and Scripting

Is there a maximum length for a shell script command?

Is there a maximum length for a shell script command? How can I detect that in my OS? For example, if I have something like: command A | command B | command C | awk '{print $1 $2 $3 $4 $5}' then can we break the commands and also the arguments inside awk ? Thanks (11 Replies)
Discussion started by: hbar
11 Replies

10. Shell Programming and Scripting

Maximum length of a string

good friends days I would love to know if I can help you know the length of a string example: cadena= "cual es mi largo" echo "cadena : $cadena# cadena :16 (7 Replies)
Discussion started by: tricampeon81
7 Replies

LEARN ABOUT NETBSD

getconf

GETCONF(1)						    BSD General Commands Manual 						GETCONF(1)

NAME

     getconf -- get configuration values

SYNOPSIS

     getconf system_var
     getconf -a
     getconf path_var pathname
     getconf -a pathname

DESCRIPTION

     The getconf utility writes the current value of a configurable system limit or option variable to the standard output.

     The system_var argument specifies the system variable to be queried.  The names of the system variables are from sysconf(3) with the leading
     ``_SC_'' removed.

     The path_var argument specifies the pathname variable to be queried for the specified pathname argument.  The names of the pathname variables
     are from pathconf(2) with the leading ``_PC_'' removed.

     When invoked with the option -a, getconf writes a list of all applicable variables and their values to the standard output, in the format
     ``name = value''.

EXIT STATUS

     The getconf utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     pathconf(2), confstr(3), limits(3), sysconf(3)

STANDARDS

     The getconf utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').

BSD
								  August 9, 2011							       BSD
All times are GMT -4. The time now is 12:16 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy