Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] U.S. Library of Congress UCE [See Spam.] udev utility UDP 2nd UDP/IP ufs filesystem ufsdump utility UID effective passwd file, in ulimit builtin umask builtin 2nd 3rd umount utility 2nd 3rd 4th umsdos filesystem unalias builtin 2nd uname utility uncompress utility Undecillion Undeclared variable Unicast packet 2nd Unicast vs. broadcast Unicode uniq utility Unique filename 2nd University of Illinois UNIX Bourne Shell domain socket philosophy printing, traditional System V 2nd System V Interface Definition [See System, V Interface Definition.] unix2dos utility 2nd unlink() system call Unlock view, Konqueror Unmanaged window Unmount a busy filesystem Unpack archive file using tar unset builtin 2nd 3rd Unshielded twisted pair [See UTP cable.] until control structure unzip utility up2date utility 2nd up2date-config utility update command (cvs) updatedb utility 2nd Upgrade [See Red Hat, Enterprise Linux versus Fedora Core.] Upgrading software ups utility 2nd uptime utility Uptime, display using w urandom file URI URL 2nd Usage message 2nd 3rd 4th 5th Usenet 2nd User accounts, manage add 2nd authentication cannot log in communication, network created variable 2nd Datagram Protocol [See UDP.] finger ID [See UID.] interface 2nd map, Samba mode modify 2nd name [See Username.] name, Samba nfsnobody nobody, Samba private groups remove root [See Superuser.] Samba Superuser [See Superuser.] w who user_list file (vsftpd) useradd utility userdel utility usermod utility Username 2nd 3rd Userspace usr partition UTC Utility accept accton adduser AIDE 2nd 3rd amanda Anaconda anacron apm apropos 2nd 3rd 4th aspell 2nd at 2nd 3rd authconfig automount basename 2nd 3rd beagle bison BitTorrent [See BitTorrent.] builtin versus bunzip2 2nd bzcat bzip2 2nd 3rd bzip2recover cancel cat 2nd 3rd 4th 5th 6th chkconfig chkrootkit chmod 2nd chsh clear compress 2nd consolehelper 2nd cp 2nd 3rd cpio 2nd crack crontab 2nd cut cvs date 2nd ddd 2nd depmod df dhclient diff 2nd dig 2nd 3rd 4th disable dmesg 2nd 3rd dos2unix 2nd DragonSquire dsniff dump e2label edquota egrep emacs enable ethereal Evolution 2nd exportfs 2nd fdformat fdisk [See parted utility.] file 2nd 3rd find 2nd 3rd 4th find using whereis find using which finger 2nd 3rd 4th 5th flex fsck 2nd 3rd 4th ftp 2nd 3rd 4th fuser fwtk gaim gawk 2nd gcc 2nd gcc (GNU) gdb 2nd gdm gdm (GNOME) gdmsetup getty gnome-control-center gnome-font-properties gnome-terminal gopher gprof grep 2nd 3rd 4th 5th 6th 7th 8th groupadd groupdel groupmod groups grub gunzip gzip halt 2nd 3rd head host 2nd hostname 2nd hping id info 2nd 3rd init 2nd 3rd 4th 5th 6th 7th insmod ipchains iptables iptables-restore iptables-save iwconfig John the Ripper jwhois kcolorchooser kcron kdbg kdm (KDE) kerberos 2nd kfind Kickstart killall klipper 2nd konsole kudzu 2nd L6 ld ld-linux.so ldd 2nd less 2nd 3rd 4th 5th lids links 2nd lint ln 2nd 3rd locate 2nd lock login 2nd logresolve logrotate logwatch lp lpadmin lpinfo lpq 2nd lpr 2nd 3rd 4th lprm 2nd lpstat 2nd ls 2nd 3rd 4th 5th 6th 7th lsmod lsof lynx mail 2nd mailq mailstats make 2nd 3rd 4th makedbm makemap makewhatis 2nd man 2nd 3rd md5sum memtest86+ mesg mingetty 2nd 3rd mkdir 2nd 3rd mkfifo mkfs 2nd 3rd 4th 5th mkswap modinfo modprobe more 2nd 3rd mount 2nd 3rd 4th 5th 6th mt mv 2nd 3rd mxgdb names, typeface nessus net net use (Windows) net view (Windows) netcat netstat network 2nd newaliases nisdomainname nmap nmblookup 2nd nn nologin od OPIE 2nd option parted passwd 2nd 3rd 4th pidof pinfo ping 2nd 3rd 4th ping6 pirut portmap 2nd poweroff praliases printmgr procmail ps 2nd 3rd 4th 5th pstree pwd 2nd qmail quota quotaon rbac rcp readnews reboot reject reset restore rhn-applet-gui rlogin rm 2nd 3rd 4th 5th rmdir rmmod rn rndc rpcinfo 2nd rpm rsh 2nd runlevel ruptime S/Key saint samhain 2nd sara scp 2nd 3rd [See also OpenSSH.] script sed service sestatus setserial sftp sha1sum showmount shutdown 2nd smbclient 2nd 3rd smbstatus 2nd smbtree 2nd snort sort 2nd 3rd 4th 5th splint srp ssh 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th [See also OpenSSH.] ssh-keygen startx 2nd stat strace stty 2nd su 2nd 3rd 4th sudo swapon swat swatch switchdesk sylpheed sync sysctl 2nd syslog system-config-bind system-config-boot system-config-date system-config-display system-config-httpd system-config-keyboard system-config-kickstart system-config-language system-config-lvm system-config-mouse system-config-netboot system-config-network system-config-network-cmd system-config-nfs system-config-printer system-config-rootpassword system-config-samba system-config-securitylevel 2nd 3rd system-config-services system-config-soundcard system-config-users system-logviewer system-switch-mail tail 2nd talk 2nd tar 2nd 3rd 4th tee telinit 2nd telnet 2nd 3rd 4th 5th 6th test 2nd 3rd 4th 5th testparm testprns 2nd tftp tin TkCVS top 2nd torrentinfo-console touch 2nd tr 2nd 3rd traceroute traceroute6 tripwire 2nd true tset tty tune2fs 2nd typeset udev ufsdump umount 2nd 3rd 4th uname uncompress uniq unix2dos 2nd unzip up2date 2nd up2date-config updatedb 2nd ups 2nd uptime useradd userdel usermod uucp vimtutor vmstat w 2nd wall 2nd wc webalizer wget whatis 2nd whereis 2nd which who 2nd 3rd 4th 5th 6th whois write 2nd 3rd X Window System xargs xclock xev xhost Xinerama xmodmap Xorg xrn xvnews xxgdb 2nd ypinit yppasswd ypwhich ypxfr yum [See yum.] yumdownloader zcat zip UTP cable uucp utility |