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largefile - large file status of utilities
A large file is a regular file whose size is greater than or equal to 2 Gbyte ( 2^31 bytes). A small file is a regular file whose size is less than 2 Gbyte.
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 | ||||
| dd | ||||
| file | ||||
| gzip | ||||
| ksh93 | ||||
| mdb | ||||
| nawk | ||||
| praliases | ||||
| rm | ||||
| sort | ||||
| tee | ||||
| uudcode |
The following /usr/xpg4/bin utilities are large file aware:
| awk | cp | chgrp | chown | du |
| egrep | fgrep | file | grep | ln |
| ls | ||||
| sh |
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 | mknode |
| 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.
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 |
The following utilities are large file aware for nfs file systems:
| /usr/lib/autofs/automountd | /usr/sbin/mount |
| /usr/lib/nfs/rquotad |
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 | ||||
| quota | ||||
| tunefs |
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 | ||||
| red | ||||
| 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:
| lpr |
lf64(5), lfcompile(5), lfcompile64(5)
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