maximum number of arguments Post: 302141063

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Top Forums UNIX for Dummies Questions & Answers maximum number of arguments Post 302141063 by matrixmadhan on Wednesday 17th of October 2007 02:14:34 PM

10-17-2007

Registered User

maximum number of arguments

Hi,

What is the maximum number of arguments that could be passed to zsh ?

To find out that I tried a simple script.

And the maximum number of arguments that could be passed turned out to be 23394

Code:

#! /bin/zsh

arg=1

i=1
subIndex=23000
while [ $i -le $subIndex ]
do
  arg=$arg" "$i
  i=$(($i + 1))
done

while :
do
  line="./subTest.zsh "$arg
  echo "$line" | zsh
  i=$(($i + 1))
  arg=$arg" "$i
done

exit 0

Code:

>cat subTest.zsh
#! /bin/zsh

echo "Argument count: ${#}"

exit 1

Am not sure whether this approach is current or not.

Or is the maximum number of arguments that could be passed to a shell stored somewhere ?

Please, shed some light upon this

matrixmadhan

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LEARN ABOUT OPENSOLARIS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh,
       /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh,
       /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list.

       Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1).

FILES

       /etc/shells    list of shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.11							    20 Nov 2007 							 shells(4)