Unix/Linux and command reference

shell programming
awk_format_fields  (fishcooking)
awk_length  match word length 
awk_match  match string 
awk_right_justify  text alignment 
awk_Sam  sed, set, shift
         (text file statistics)
awk_shorts number of Fields (words) on the line
                               underline string that matches pattern
duplicated_count counts lines, words, and chars in text
                                         delete duplicated lines; words frequency 
getopts  case, $OPTARG
histogram  awk, { x[int($1/10)]++ }  
maximax  awk, set, ${1:+$1/}*
         (find the longest filename)
maximax_recursive
perl_examples
recursive_myfind  typeset
synchronize_dirs  find, cmp -s, cp -pr
synchronize_dirs_i  with -i option 
text_file_utilities  sed, awk, case,
  basename, export, ifconfig
wgrep  awk match  $var, sed, shift,
  (( )) && { }

introduction
basename  set, tty
calendar_calc
calendar_case  case, sed, set
chmod_setuid  chmod, umask, setuid
setuid_tutorial
braces {cmd1; cmd2;}, John ${d}, 
  kernel
encrypt
expr  (( )), RANDOM, head, tail,
  Braces Substitution { }
find  ls -alt
grep_ls  regular expressions, 
  vi, tr -d, rev, pr -t
move
open_file
palindrome_finder  awk, case
sed  echo ${#text}
sort  uniq, pr -t, sort -rn -k2,2
shuffle_files  read -ru3, exec 3<&- 
  ${inFiles[0]}
typeset  echo "${1%$2}" substring 
215-1  email path, mv, legal filenames,
  ls, pipe, < > >>, STDERR, printf,
  PS1, builtin commands 
215-2  symbolic link, shift, $*, $#, cut,
  tr -d, read, file, filter, man -k, lp

system administration
account  useradd, usermod, userdel, groupadd,
  passwd, chage, su, lock, unlock
background_jobs
cron
daemon  integrate it in system
disk usage  du, find
floppy  ./mkbootdisk, fdformat, mkfs, e2label,
  mount, dd, fd 
last_logins  last, awk (match $var) 
null_process  core dump, ulimit, mknod /dev/null,
  zombie, trojan horse, SIGKILL, rlogin, initlog,
  nice, stty, rc.inet1, sendmail -bt, Tina+Jamal 
partition  fdisk, ifconfig, mkbootdisk,
  mknod, df, kernel messages dmesg
procinfo  uptime, vmstat, ps -ef, ps aux, free,
  swapinfo, du, bdf, edquota, top, pstree, lsof,
  compress
root_password  change, reset, /etc/shadow 
runlevel  ps -p1 -f, askrunlevel, /etc/inittab,
  /sbin/telinit 3, init 3, ctrl+alt+F2,
  /sbin/telinit q, shutdown -h now
tar  backup: create archive, extract files
tar_shar notes 
you_are_detected  lock workstation 

make HTML page in Linux
html_make.doc  ftp images from Win
pagegen.html  display in browser
blue_checkered.gif
email.gif
happy_people.gif
hcc.gif
unix.gif

php_octal-dec converter:
 input/output on the Web, script runs in Linux

enter sku, display product
sku   $( )  (( ))   set           
sku_perl   substr
database.txt


printer_Win_Linux
article: Cracked!