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Harley Hahn
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A Personal Note
from Harley Hahn

Unix Book
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Table of Contents

List of Figures

Chapters...
   1   2   3
   4   5   6
   7   8   9
  10  11  12
  13  14  15
  16  17  18
  19  20  21
  22  23  24
  25  26

Glossary

Appendixes...
  A  B  C
  D  E  F
  G  H

Command
Summary...

• Alphabetical
• By category

Unix-Linux
Timeline

Internet
Resources

Errors and
Corrections

Endorsements


INSTRUCTOR
AND STUDENT
MATERIAL...

Home Page
& Overview

Exercises
& Answers

The Unix Model
Curriculum &
Course Outlines

PowerPoint Files
for Teachers

Appendix A...

Summary of Unix Commands Covered in This Book

This appendix summarizes the 143 Unix commands discussed in this book. At the end of each summary, the designation [X] provides a link to the chapter in which the command is explained.

  
!Reexecute command from the history list [13]
!!Reexecute last command from the history list [13]
&Run a program in the background [26]
^^Substitute/reexecute last command from history list [13]
^ZSuspend (pause) a foreground process [26]
  
aliasCreate/display aliases [13]
aproposDisplay command names based on keyword search [9]
  
bashBash shell [11]
bcArbitrary-precision, easy-to-use calculator [8]
bgMove job to the background [26]
bindkeySet command-line editing mode [13]
  
calDisplay a calendar [8]
calendarDisplay current reminders from calendar file [8]
catCombine files; copy standard input to standard output [16]
cdChange your working directory [24]
chmodChange file permissions for files or directories [25]
chshChange your default shell [11]
cmpCompare two files [17]
colrmDelete specified columns of data [16]
commCompare two sorted files, show differences [17]
cpCopy files; copy directories [25]
cshC-Shell [11]
cutExtract specified columns/fields of data [17]
  
dateDisplay the time and date [8]
dcArbitrary-precision, stack-based calculator [8]
dfDisplay disk space used/available for filesystems [24]
diffCompare two files, show differences [17]
dirsDisplay/clear contents of the directory stack [24]
dmesgDisplay boot messages (Linux) [06]
duDisplay amount of disk storage used by files [24]
dumpe2fsDisplay filesystem information from superblock [24]
  
echoWrite arguments to standard output [12]
envDisplay environment variables [12]
exitExit a shell [4]
expandChange tabs to spaces [18]
exportExport shell variables to the environment [12]
  
fcDisplay/reexecute commands from the history list [13]
fgMove job to the foreground [26]
fileAnalyze type of file [24]
findSearch for files in a directory tree; process results [25]
fmtFormat paragraphs to make them look nice [18, 22]
foldFormat long lines into shorter lines [18]
fuserIdentify processes that are using specific files [26]
  
groupsDisplay the groups to which a userid belongs [25]
grepSelect lines containing a specified pattern [19]
  
headSelect lines from beginning of data [16, 21]
hexdumpDisplay binary (non-text) files [21]
historyDisplay commands from the history list [13]
hostnameDisplay the name of your system [8]
  
idDisplay current userid and groupid [25]
infoDisplay file from the Info reference system [9]
initChange to another runlevel [6]
  
jobsDisplay information about jobs [26]
joinCombine columns of data based on common fields [19]
  
killTerminate a process; send a signal to a process [26]
kshKorn shell [11]
  
lastCheck the last time userid has logged in [4]
leaveDisplay reminder at a specified time [8]
lessPager: display data, one screenful at a time [21]
lnCreate a new link to a file [25]
locateSearch for files [25]
lockTemporarily lock your terminal [8]
loginTerminate a login shell and initiate a new login [4]
logoutTerminate a login shell [4]
lookSelect lines that begin with a specified pattern [19]
lsDisplay various types of information about files [24, 25]
  
manDisplay pages from the online Unix reference manual [9]
mkdirCreate a directory [24]
mkfifoCreate a named pipe [23]
morePager: display data, one screenful at a time [21]
mountMount a filesystem [23]
mvMove or rename files or directories [24, 25]
  
niceRun a program using specified scheduling priority [26]
nlAdd line numbers to text [18]
  
odDisplay binary (non-text) files [21]
  
passwdChange your login password [4]
pasteCombine columns of data [17]
popdChange working directory; pop name off directory stack [24]
prFormat text into pages or columns [18]
printWrite arguments to standard output [12]
printenvDisplay environment variables [12]
prstatDisplay dynamic information about processes [26]
psDisplay information about processes [26]
pstreeDisplay diagram of a process tree [26]
ptreeDisplay diagram of a process tree [26]
pushdChange working directory; push name on directory stack [24]
pwdDisplay pathname of your working directory [24]
  
quotaDisplay your system resource quotas [8, 24]
  
rebootReboot the computer [6]
reniceChange scheduling priority of a running program [26]
revReverse order of characters in each line of data [16]
rmDelete files or directories [25]
rmdirRemove an empty directory [24]
  
sdiffCompare two files, show differences [17]
sedNon-interactive text editing [19]
setSet/display shell options and shell variables [12]
setenvSet/display environment variables [12]
shBourne shell [11]
shredDelete a file securely [25]
shutdownShutdown the computer [6]
sleepDelay for a specified interval [26]
sortSort data; check if data is sorted [19]
splitSplit a large file into smaller files [16]
statDisplay information from an inode [25]
stringsSearch for character strings in binary files [19]
sttySet/display operating options for your terminal [7]
suChange to superuser or another userid [6]
sudoRun a single command as superuser [6]
suspendSuspend (pause) a shell [26]
  
tacCombine files while reversing order of lines of text [16]
tailSelect lines from end of data [16, 21]
tcshTcsh shell [11]
teeCopy standard input to a file and to standard output [15]
topDisplay data about the most CPU-intensive processes [26]
touchUpdate access/modification times of file; create file [25]
trChange or delete selected characters [19]
treeDisplay a diagram of a directory tree [24]
tsortCreate a total ordering from partial orderings [19]
ttyDisplay name of the special file for your terminal [23]
typeLocate a command: display its pathname or alias [8]
  
umaskSet file mode mask for file creation [25]
umountUnmount a filesystem [23]
unaliasDelete aliases [13]
unameDisplay the name of your operating system [8]
unexpandChange spaces to tabs [18]
uniqRemove adjacent repeated lines in a text file [19]
unsetDelete shell variables [12]
unsetenvUnset environment variables [12]
uptimeDisplay how long your system has been up [8]
usersDisplay userids that are currently logged in [8]
  
vivi text editor [22]
viewStart vi text editor in read-only mode [22]
vimVim text editor [22]
  
wDisplay info about userids and active processes [8]
wcCount lines, words and characters [18]
whatisDisplay one-line summary of specified command [9]
whenceLocate a command: display its pathname or alias [8]
whereisFind files associated with a command [25]
whichLocate a command: display its pathname or alias [8]
whoDisplay info about currently logged in userids [8]
whoamiDisplay the userid that is currently logged in [8]
  
xargsRun command using arguments from standard input [25]
xmanGUI-based: display pages from online reference manual [9]

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