(cc) Tin Ho. See main page for copyright info.
ypcat (group, passwd)
ypstart # linux
ypbind
ypinit # client, specify machines to bind to
# server, specify whether master or slave
ypwhich # tell what NIS server machine is bound to.
passwd
yppasswd (obsolete, for combatibility only)
ypcat -k auto.master (-k to display the key name too!)
ypcat -k auto.direct (the direct map, use /-)
/var/yp/binding/DOMAIN/ypservers # list of ypservers that can be used (non broadcast mode)
passwd
pwconv update shadow file based on new user additon to passwd (does not set password)
passwd [uid] change password for user
chown [uid]:[gid] /home/[user] change user home dir ownership
/etc/passwd
/etc/groups
/etc/shadow
/etc/group
/etc/init.d/ (linux: /etc/rc.d/init.d/)
/etc/inet/inetd.conf
/etc/printcap or /etc/printer.conf
/etc/motd
/etc/release # see which os cd was used eg sol 8 01/00 for Jan 2000 build.
/etc/resolv.conf # dns setup
/etc/nsswitch.conf # order of search for files/dns/nis
/etc/init.d/ # list of programs that are configured for possible start up/shutdown automatically.
# actual start in /etc/rc2.d and rc3.d
dmesg : display error log messages, like /var/adm/message, etc
obsolete by syslogd
du -kxS * = display space usage Summary for only (x) one file sys (ie local)
-d = solaris native du, do not cross fs boundary, good for du -dsk / and only report ufs, sans nfs.
BUT du -dsk * will cross ufs and nfs that are mounted at the root level, such as /nfshome :(
-x = gnu du, "only 1 fs", but only Linux has desired behaviour like solaris -d
du -dk / | sort -n | less # use in solaris
du -skx * | sort -n | less # use in linux ??
df -kl = report fs space usage of local fs, solaris and linux
rpcinfo -b ypserv 1 (and 2) find out all nis server on the subnet
rpcinfo -p tin-linux : show all rpc progs on machine tin-linux
rpcinfo -n 2049 -u tin-linux 100003 : see if nfs server is running
rpcinfo -n 802 -u tin-linux 100005 : see mountd info
rpcinfo -n 1048 -u tin-linux 100005 : see mountd info
# note that mountd port may differ, see output of rpcinfo -p
nice, renice, priocntl: change scheduling priority of process
(ps/top, higher priority has higher numberic value 0=lowest, 100?=highest
nice, higher number = nicer = lower priority
-ve value of nice means not-nice, ie get more sys res, settable by root)
eg renice 10 -p [pid] : renice the process to 10 (from usual 0), thus making it to have less priority and demand less sys resource
priocntl -s -p -5 -i pid 8200 :
set the priority of process #8200 to -5.
-s = set
-p = priority
-i pid = specify class of process, can group by parent pid, etc.
date --set [datestring] : linux, set date/time of machine, the string can almost be anything.
catman -w -M /usr/local/man : rebuild the man page index for the dir /usr/local/man
catman -w : probably rebuild based on $MANPATH
dhclient = get dhcp address from server for current client.
(linux only? move...)
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99.999% uptime allow for 5.26 min of downtime in 1 year.
99.99% allow for 52 min of downtime.
99.95% allow for 263 min of downtime, a bit less than 4.5 hours.
99.9% allow for 526 min of downtime, a bit less than 10 hours.
old *.ref file content in here.