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
ksh93	ln	ls	mailcompat	mailstats
mdb	mkdir	mkfifo	more	mv
nawk	page	paste	pathchck	pg
praliases	rcp	remsh	rksh	rksh93
rm	rmdir	rsh	sed	sh
sort	split	sum	tail	tar
tee	test	touch	tr	uncompress
uudcode	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.

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