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Full Discussion: Memory/virtual space
Top Forums Shell Programming and Scripting Memory/virtual space Post 10781 by degwright on Wednesday 21st of November 2001 02:28:02 AM
Old 11-21-2001
Question LINE_MAX (limits)
Perderabo,
Thanks for the reply. I have obviously missed the point somewhere. The LINE_MAX setting here is 2048 chars. How does this figure relate to the 12,000 chars (plus cr's, linefeeds) that appears to be the restriction.
Below are some positive and negative examples. The closest wc value I have achieved so far is 11,810 (without a failure) and I know it fails when it hits 12,044.
Does your reply still stand, or have I missed something.
Unfortunately, source .c/.h filenames being what they are, can only be picked up by using the filename extension. Developers tend not select alphabetically ordered filenames, otherwise I would use a*.c etc.


Rgds David


ok
wright@w9054$ ls projects/$PROJECTPATH/*.[ch].met | wc
272 272 7840
wright@w9054$ pwd
/home/w9061disk/wright
----------------------------
ok
wright@w9054$ ls $PROJECTPATH/*.[ch].met | wc
272 272 7840
wright@w9054$ pwd
/home/w9061disk/wright
----------------------------
ok
wright@w9054$ PROJECTPATH=wright/projects/a318 ; export PROJECTPATH
wright@w9054$ ls $PROJECTPATH/*.[ch].met | wc
272 272 9744
wright@w9054$ pwd
/home/w9061disk
----------------------------
NICHT WAR
wright@w9054$ PROJECTPATH=w9061disk/wright/projects/a318 ; export PROJECTPATH
wright@w9054$ ls $PROJECTPATH/*.[ch].met | wc
/usr/bin/ksh: /usr/bin/ls: arg list too long
0 0 0
wright@w9054$ pwd
/home
wright@w9054$
------------------------------------------------------------------
OK
wright@w9054$ cd w9061disk/
wright@w9054$ PROJECTPATH=wright/projects/a318 ; export PROJECTPATH
wright@w9054$ ls $PROJECTPATH/*.[ch].met | wc
272 272 9744
wright@w9054$ pwd
/home/w9061disk
wright@w9054$
-----------------------------------
NICHT WAR
wright@w9054$ ls w9061disk/wright/projects/a318/*.[ch].met | wc
/usr/bin/ksh: /usr/bin/ls: arg list too long
0 0 0
 

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LEARN ABOUT POSIX

vconsole.conf

VCONSOLE.CONF(5)						   vconsole.conf						  VCONSOLE.CONF(5)

NAME

       vconsole.conf - configuration file for the virtual console

SYNOPSIS

       /etc/vconsole.conf

DESCRIPTION

       The /etc/vconsole.conf file configures the virtual console, i.e. keyboard mapping and console font.

       The basic file format of the vconsole.conf is a newline-separated list environment-like shell-compatible variable assignments. It is
       possible to source the configuration from shell scripts, however, beyond mere variable assignments no shell features are supported,
       allowing applications to read the file without implementing a shell compatible execution engine.

       Note that the kernel command line options vconsole.keymap=, vconsole.keymap.toggle=, vconsole.font=, vconsole.font.map=,
       vconsole.font.unimap= may be used to override the console settings at boot.

       Depending on the operating system other configuration files might be checked for configuration of the virtual console as well, however only
       as fallback.

OPTIONS

       The following options are understood:

       KEYMAP=, KEYMAP_TOGGLE=
	   Configures the key mapping table of for they keyboard.  KEYMAP= defaults to us if not set. The KEYMAP_TOGGLE= can be used to configured
	   a second toggle keymap and is by default unset.

       FONT=, FONT_MAP=, FONT_UNIMAP=
	   Configures the console font, the console map and the unicode font map.  FONT= defaults to latarcyrheb-sun16.

EXAMPLE

       Example 1. German keyboard and console

       /etc/vconsole.conf:

	   KEYMAP=de-latin1
	   FONT=latarcyrheb-sun16

SEE ALSO

       systemd(1), loadkeys(1), setfont(8), locale.conf(5)

AUTHOR

       Lennart Poettering <lennart@poettering.net>
	   Developer

systemd 							    10/07/2013							  VCONSOLE.CONF(5)
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