Datasheet

“main” (Installation and Administration) — 2004/6/25 — 13:29 — page 171 — #197

Updating the System and Package Management

Systemwide UTF-8 Encoding

Currently, the default encoding for the system is UTF-8. Thus, when per-

forming a standard installation, a locale is set with .UTF-8 encoding (e.g.,

en_US.UTF-8). For more information, see http://www.suse.de/

~mfabian/suse-cjk/locales.html.

Converting File Names to UTF-8

Files in previously created ﬁle systems do not use UTF-8 encoding for the

ﬁle names (unless speciﬁed otherwise). If these ﬁles names contain non-

ASCII characters, they will be garbled. To correct this, use the convmv

script which converts the encoding of ﬁle names to UTF-8.

Shell Tools Compatible with POSIX Standard of 2001

In the default setting, shell tools from the coreutils package (tail,

chown, head, sort, etc.) no longer comply with the POSIX standard of

1992 but with the POSIX standard of 2001 (Single UNIX Speciﬁcation, version

3 == IEEE Std 1003.1-2001 == ISO/IEC 9945:2002). The old behavior can be

forced with an environment variable:

_POSIX2_VERSION=199209

The new value is 200112 and is used the default for _POSIX2_VERSION.

The SUS standard can be reviewed at the following URL (free of charge,

but registration is required):

http://www.unix.org

Table 5.1: Comparison POSIX 1992 vs. POSIX 2001

POSIX 1992 POSIX 2001

chown tux.users chown tux:users

tail +3 tail -n +3

head -1 head -n 1

sort +3 sort -k +3

nice -10 nice -n 10

split -10 split -l 10

171SUSE LINUX Enterprise Server