largefile(5)

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man pages section 5: Standards, Environments, and Macros

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Name | Description | See Also

Name

largefile– large file status of utilities

Description

A large file is a regular file whose size is greater than or equal to 2 Gbyte ( 2³¹ bytes). A small file is a regular file whose size is less than 2 Gbyte.

Large file aware utilities

A utility is called large file aware if it can process large files in the same manner as it does small files. A utility that is large file aware is able to handle large files as input and generate as output large files that are being processed. The exception is where additional files are used as system configuration files or support files that can augment the processing. For example, the file utility supports the -m option for an alternative “magic” file and the -f option for a support file that can contain a list of file names. It is unspecified whether a utility that is large file aware will accept configuration or support files that are large files. If a large file aware utility does not accept configuration or support files that are large files, it will cause no data loss or corruption upon encountering such files and will return an appropriate error.

The following /usr/bin utilities are large file aware:

`adb`	`aliasadm`	`awk`	`bdiff`	`cat`
`chgrp`	`chmod`	`chown`	`cksum`	`cmp`
`compress`	`cp`	`csh`	`csplit`	`cut`
`dd`	`dircmp`	`du`	`egrep`	`fgrep`
`file`	`find`	`ftp`	`getconf`	`grep`
`gzip`	`head`	`join`	`jsh`	`ksh`
`ln`	`ls`	`mailcompat`	`mailstats`	`mdb`
`mkdir`	`mkfifo`	`more`	`mv`	`nawk`
`page`	`paste`	`pathchck`	`pg`	`praliases`
`rcp`	`remsh`	`rksh`	`rm`	`rmdir`
`rsh`	`sed`	`sh`	`sort`	`split`
`sum`	`tail`	`tar`	`tee`	`test`
`touch`	`tr`	`uncompress`	`uudecode`	`uuencode`
`vacation`	`wc`	`zcat`

The following /usr/xpg4/bin utilities are large file aware:

`awk`	`cp`	`chgrp`	`chown`	`du`
`egrep`	`fgrep`	`file`	`grep`	`ln`
`ls`	`more`	`mv`	`rm`	`sed`
`sh`	sort	tail	tr

The following /usr/xpg6/bin utilities are large file aware:

getconf

ls

tr

The following /usr/sbin utilities are large file aware:

`editmap`	`install`	`makemap`	`mkfile`	`mknod`
`mvdir`	`swap`

The following /usr/lib utilities are large file aware:

mail.local

sendmail

smrsh

See the USAGE section of the swap(1M) manual page for limitations of swap on block devices greater than 2 Gbyte on a 32–bit operating system.

The following /usr/ucb utilities are large file aware:

`chown`	`from`	`ln`	`ls`	`sed`
`sum`	`touch`

The /usr/bin/cpio and /usr/bin/pax utilities are large file aware, but cannot archive a file whose size exceeds 8 Gbyte – 1 byte.

The /usr/bin/truss utilities has been modified to read a dump file and display information relevant to large files, such as offsets.

cachefs file systems

The following /usr/bin utilities are large file aware for cachefs file systems:

cachefspack

cachefsstat

The following /usr/sbin utilities are large file aware for cachefs file systems:

`cachefslog`	`cachefswssize`	`cfsadmin`	`fsck`
`mount`	`umount`

nfs file systems

The following utilities are large file aware for nfs file systems:

`/usr/lib/autofs/automountd`	`/usr/sbin/mount`
`/usr/lib/nfs/rquotad`

ufs file systems

The following /usr/bin utility is large file aware for ufs file systems:

df

The following /usr/lib/nfs utility is large file aware for ufs file systems:

rquotad

The following /usr/xpg4/bin utility is large file aware for ufs file systems:

df

The following /usr/sbin utilities are large file aware for ufs file systems:

`clri`	`dcopy`	`edquota`	`ff`	`fsck`
`fsdb`	`fsirand`	`fstyp`	`labelit`	`lockfs`
`mkfs`	`mount`	`ncheck`	`newfs`	`quot`
`quota`	`quotacheck`	`quotaoff`	`quotaon`	`repquota`
`tunefs`	`ufsdump`	`ufsrestore`	`umount`

Large file safe utilities

A utility is called large file safe if it causes no data loss or corruption when it encounters a large file. A utility that is large file safe is unable to process properly a large file, but returns an appropriate error.

The following /usr/bin utilities are large file safe:

`audioconvert`	`audioplay`	`audiorecord`	`comm`	`diff`
`diff3`	`diffmk`	`ed`	`lp`	`mail`
`mailcompat`	`mailstats`	`mailx`	`pack`	`pcat`
`red`	`rmail`	`sdiff`	`unpack`	`vi`
`view`

The following /usr/xpg4/bin utilities are large file safe:

ed

vi

view

The following /usr/xpg6/bin utility is large file safe:

ed

The following /usr/sbin utilities are large file safe:

lpfilter

lpforms

The following /usr/ucb utilities are large file safe:

Mail

lpr