\initial {#}
\entry {\samp {#!program} sequence}{51, 65}
\initial {$}
\entry {$ in regular expressions}{24}
\entry {\samp {$<} operator}{57}
\initial {'}
\entry {\key {'} and \key {"}}{47}
\initial {(}
\entry {() and subshells}{52}
\entry {() operators to make array in csh}{43}
\initial {*}
\entry {* in regular expressions}{24}
\initial {-}
\entry {\samp {-I} option to \code {cc}}{118}
\entry {\samp {-L} option to \code {cc}}{117}
\initial {.}
\entry {. directory}{11, 12}
\entry {. in regular expressions}{24}
\entry {.. directory}{11, 12}
\entry {\file {.cshrc} file}{41}
\entry {\file {.login} file}{41}
\entry {\file {.profile} set up in sh}{63}
\entry {.xsession file}{32}
\initial {/}
\entry {\file {/etc/group}}{37}
\initial {?}
\entry {? in regular expressions}{24}
\initial {[}
\entry {\samp {[]} for test in sh}{67}
\entry {[] in regular expressions}{24}
\initial {`}
\entry {\key {`} symbol and embedded shells}{47}
\entry {\samp {`..`} in perl}{76}
\initial {{\tt\char 124}}
\entry {\samp {|} symbol}{43, 45}
\initial {{\tt\char 43}}
\entry {+ in regular expressions}{24}
\initial {{\tt\hat}}
\entry {^ in regular expressions}{24}
\initial {{\tt\less}}
\entry {\samp {<>} filehandle in perl}{84}
\initial {1}
\entry {\samp {1>} in sh}{64}
\initial {2}
\entry {\samp {2>} in sh}{64}
\entry {\samp {2>&1} in sh}{64}
\initial {A}
\entry {\file {a.out}}{117}
\entry {\code {accept()}}{155}
\entry {Access bits}{37}
\entry {Access bits, octal form}{38}
\entry {Access bits, text form}{38}
\entry {Access control}{27}
\entry {Access control lists}{27}
\entry {Access rights}{37}
\entry {Access to files}{37}
\entry {ACLs}{27}
\entry {ANSI C}{116}
\entry {Appending to a file with \samp {>>}}{44}
\entry {apropos}{8}
\entry {\samp {ar} archiver}{29}
\entry {\samp {archie} program}{30}
\entry {Argument vector in csh}{51}
\entry {Argument vector in perl}{76, 78}
\entry {Arguments, command line}{51}
\entry {\samp {argv}}{51}
\entry {Arithemtic in sh}{65}
\entry {Arithemtic operations in csh}{59}
\entry {Arrays (associated) in perl}{79}
\entry {Arrays (normal) in perl}{78}
\entry {Arrays and \samp {split}}{79}
\entry {Arrays in csh}{43}
\entry {Arrays in perl}{76}
\entry {Associated arrays, iteration}{83}
\entry {\samp {at} command}{74}
\entry {AT&T}{7}
\entry {\samp {awk}}{27}
\entry {\samp {awk} pattern extractor}{75}
\initial {B}
\entry {\samp {Background picture}}{30}
\entry {Background process}{47, 48}
\entry {Backwards quotes}{47}
\entry {bash}{10, 25}
\entry {\samp {batch} command}{74}
\entry {Berkeley Internet Name Domain (BIND)}{160}
\entry {\samp {bg} command}{50}
\entry {Big endian}{151}
\entry {BIND}{160}
\entry {\code {bind()}}{155}
\entry {Bourne shell}{10, 63}
\entry {Break key}{51}
\entry {\samp {breaksw}}{57}
\entry {Browsing through a file}{27}
\entry {BSD}{7}
\entry {Build software script}{55}
\entry {Built in commands}{9}
\entry {Byte order}{151}
\initial {C}
\entry {C}{6}
\entry {C library calls and shell commands}{10}
\entry {C programming}{115}
\entry {C shell}{10}
\entry {C shell setup files}{41}
\entry {C, role in unix}{10}
\entry {C++ suffix rules}{124}
\entry {Calculator, shell}{30}
\entry {Calculator, X windows}{30}
\entry {\samp {cat} command}{27}
\entry {\samp {cc}}{29}
\entry {\samp {CC}}{29}
\entry {CGI protocol}{103}
\entry {Changing file mode}{27}
\entry {\samp {chgrp} command}{27}
\entry {\code {chgrp} command}{39}
\entry {\samp {chmod} command}{27}
\entry {\code {chmod} command}{38}
\entry {\samp {chop} command in perl}{86}
\entry {\samp {chown} command}{27}
\entry {\code {chown} command}{39}
\entry {\samp {close} command in perl}{84}
\entry {\code {closedir} command}{126}
\entry {\samp {cmdtool}}{26}
\entry {Command completion}{46}
\entry {Command history}{46}
\entry {Command interpreter}{19}
\entry {Command line arguments}{51}
\entry {Command line arguments in C}{125}
\entry {Command line arguments in perl}{76, 78}
\entry {Command line arguments in sh}{65}
\entry {Command path}{21}
\entry {Command window}{26}
\entry {Commands as files}{9}
\entry {Commands path}{9}
\entry {Comparison operators in csh}{54}
\entry {Compiler script}{55}
\entry {Compilers}{29}
\entry {Compiling huge programs}{120}
\entry {Compiling programs}{117}
\entry {\code {connect()}}{153}
\entry {\samp {continue} in csh}{57}
\entry {Continuing long lines}{53}
\entry {Copy of output to file}{45}
\entry {core}{9}
\entry {\samp {cp} command}{26}
\entry {Creating directories}{26}
\entry {Creating files}{26}
\entry {\file {csh}}{10}
\entry {csh}{25}
\entry {\key {CTRL-A}}{25}
\entry {\key {CTRL-C}}{25}
\entry {\key {CTRL-D}}{25}
\entry {\key {CTRL-D} and EOF}{70}
\entry {\key {CTRL-E}}{25}
\entry {\key {CTRL-L}}{25}
\entry {\key {CTRL-Z}}{25}
\entry {Curses}{115}
\entry {\samp {cut}}{75}
\entry {Cut as a perl script}{84}
\entry {\samp {cut} command}{27}
\initial {D}
\entry {Database maps}{159}
\entry {Database support}{90}
\entry {\samp {date} command}{30}
\entry {Date stamp, updating}{26}
\entry {\samp {dbx} debugger}{29}
\entry {Debugger}{29}
\entry {Debugger for C}{10}
\entry {Debugger GUI}{29}
\entry {Decisions and return codes in sh}{66}
\entry {delete}{9}
\entry {Dependencies in Makefiles}{121}
\entry {\samp {df} command}{28}
\entry {\samp {die}}{87}
\entry {Directories, creating}{26}
\entry {Directories, deleting}{26}
\entry {dirent directory interface}{126}
\entry {Disk usage.}{28}
\entry {DISPLAY variable}{33}
\entry {Display, X}{32}
\entry {DNS}{160}
\entry {\samp {do..while} in perl}{81}
\entry {Domainname}{29}
\entry {\samp {domainname} command}{29}
\entry {DOS}{5}
\entry {Drawing program}{30}
\entry {\samp {du} command}{28}
\entry {dvi to postscript}{30}
\initial {E}
\entry {\samp {ed}}{26}
\entry {\code {egrep} command}{23}
\entry {\samp {elm} mailer}{28}
\entry {\samp {emacs}}{26}
\entry {Embedded shell}{47}
\entry {Encryption}{88}
\entry {End of file \key {CTRL-D}}{70}
\entry {\code {env} command}{22}
\entry {Environment variables}{19, 21}
\entry {Environment variables in C}{125}
\entry {Environment variables in perl}{76, 79}
\entry {Environment, unix user}{19}
\entry {\code {envp} in C}{125}
\entry {\samp {eq} and \samp {==} in perl}{77}
\entry {Error messages}{11}
\entry {Errors in perl}{87}
\entry {Executable, making programs}{39}
\entry {Exiting on errors in perl}{87}
\entry {\samp {EXPORT} command in sh}{63}
\entry {Expressions, regular}{23}
\entry {\code {extern} variables}{117}
\entry {Extracting filename components}{58}
\initial {F}
\entry {\samp {fg} command}{50}
\entry {File access permission}{37}
\entry {File handles in perl}{84}
\entry {File hierarchy}{11}
\entry {File mode, changing}{27}
\entry {File protection bits}{37}
\entry {File transfer}{28}
\entry {File type, determining in C}{128}
\entry {Filename completion}{46}
\entry {Files in perl}{84}
\entry {Files, iterating over lines}{83}
\entry {\samp {find} command}{27, 48}
\entry {Finding commands}{8}
\entry {Finding FTP files}{30}
\entry {\samp {finger} service}{28}
\entry {\samp {fmgr} file manager}{27}
\entry {\samp {fnews} news reader}{30}
\entry {For loop}{82}
\entry {\code {for} loop in perl}{81}
\entry {\code {for} loop in sh}{65}
\entry {For loops in perl}{81}
\entry {\code {foreach}}{56}
\entry {\code {foreach} example}{52}
\entry {Foreach loop}{82}
\entry {\code {foreach} loop in perl}{81}
\entry {Foreground process}{47}
\entry {Forking new processes}{89}
\entry {Formatting text in a file}{45}
\entry {Forms in HTML}{103}
\entry {\samp {ftp} program}{28}
\entry {FTP resources, finding}{30}
\entry {Fully qualified name}{161}
\initial {G}
\entry {\samp {g++}}{29}
\entry {\samp {gcc}}{29}
\entry {\samp {gdb} debugger}{29}
\entry {\code {getenv() function}}{125}
\entry {\code {getgrnam()}}{160}
\entry {\code {gethostbyname()}}{153, 161}
\entry {\code {gethostent()}}{160}
\entry {\code {getnetgrent()}}{160}
\entry {\code {getpwnam()}}{160}
\entry {\code {getpwuid()}}{160}
\entry {\code {getservbyname()}}{160}
\entry {\code {getservbyport()}}{160}
\entry {Getting command output into a string}{25}
\entry {\samp {ghostscript} "GNU postscript" interpreter}{30}
\entry {\samp {ghostview} postscript previewer}{30}
\entry {gif}{30}
\entry {Global variables}{22}
\entry {Global variables in csh}{42}
\entry {Global variables in sh}{63}
\entry {Granting permission}{27}
\entry {groups}{37}
\initial {H}
\entry {Hard links}{12, 13}
\entry {Help function for commands}{8}
\entry {Hierarchy, file}{11}
\entry {\samp {hostname} command}{29}
\entry {Hypertext}{30}
\initial {I}
\entry {I/O streams}{10}
\entry {\samp {if} in perl}{81}
\entry {\code {if..then..else} in csh}{53}
\entry {\code {if..then..else..fi} in sh}{67}
\entry {\samp {IFS} variable in sh}{70}
\entry {\code {INADDR_ANY}}{151}
\entry {Include file search path}{118}
\entry {Include files}{118}
\entry {Index nodes}{13}
\entry {Information about file properties}{127}
\entry {\emph {init}}{19}
\entry {inodes}{13}
\entry {Input in csh}{57}
\entry {Input in sh}{68}
\entry {Input over many lines}{45}
\entry {Inserting a command into a string}{25}
\entry {Internet relay chat}{28}
\entry {Internet resources}{30}
\entry {Interpretation of values in perl}{77}
\entry {Interrupt handler in sh}{71}
\entry {\code {ioctl()}}{145}
\entry {\samp {IRC}}{28}
\entry {Iterating over files}{83}
\entry {Iteration over arrays}{82}
\initial {J}
\entry {Job control}{47}
\entry {Job numbers in csh}{50}
\entry {Job, moving to background}{50}
\entry {Joker notation}{22}
\entry {jpg}{30}
\entry {jsh}{25}
\initial {K}
\entry {kernel}{9}
\entry {Kernel}{12}
\entry {Kernighan and Ritchie C}{116}
\entry {\samp {kill} command}{50}
\entry {ksh}{10, 25}
\initial {L}
\entry {\samp {latex}}{30}
\entry {\samp {ld} loader/linker}{29}
\entry {\file {ld.so.cache}}{119}
\entry {\file {ldconfig}}{119}
\entry {\samp {less} command}{27}
\entry {lex}{10}
\entry {\samp {lex}}{115}
\entry {Lexer}{147}
\entry {libc}{117}
\entry {libcurses}{117}
\entry {libm}{117}
\entry {Library path for C loader}{117}
\entry {Limitations of shell programs}{73}
\entry {Links in C}{127}
\entry {Links, where do they point?}{127}
\entry {\code {listen()}}{155}
\entry {Little endian}{151}
\entry {\code {ln -s}}{13}
\entry {Local variables}{22}
\entry {Local variables in csh}{42}
\entry {Local variables in perl}{87}
\entry {Local variables in sh}{63}
\entry {\samp {locate} command}{27}
\entry {Logging on}{15}
\entry {Login environment}{19}
\entry {Login evironment}{41}
\entry {Long file listing}{37}
\entry {Long lines, continuing}{53}
\entry {Loops and list separators}{70}
\entry {Loops in csh}{56}
\entry {Loops in sh}{69}
\entry {\samp {lp} command}{27}
\entry {\samp {lpq}}{27}
\entry {\samp {lpr} command}{27}
\entry {\samp {lpstat}}{27}
\entry {\code {ls -l}}{37}
\entry {\samp {ls command}}{26}
\entry {\code {lstat()}}{127}
\initial {M}
\entry {MacIntosh}{6}
\entry {Macros for stat}{128}
\entry {Mail clients}{28}
\entry {make}{10}
\entry {Make rules for C++}{124}
\entry {Make software script}{55}
\entry {Making a script}{51}
\entry {Making directories}{8}
\entry {Making scripts in sh}{65}
\entry {Masking programs executable}{39}
\entry {Matching filenames}{22}
\entry {Matching strings}{23}
\entry {mc}{27}
\entry {Mercury}{29}
\entry {\samp {mesg}}{28}
\entry {Messages}{28}
\entry {Mime types in W3}{103}
\entry {mkdir}{8}
\entry {\samp {mkdir} command}{26}
\entry {\samp {more} command}{27}
\entry {\samp {mosaic}}{30}
\entry {Mounted file systems}{29}
\entry {Moving a job to the background}{50}
\entry {Moving files}{26}
\entry {Multiple C files, compiling}{117}
\entry {Multiple screens}{34}
\entry {\samp {mv} command}{26}
\initial {N}
\entry {nc}{27}
\entry {\samp {ncftp} program}{28}
\entry {\samp {netstat} network statistics}{29}
\entry {Network byte order}{151}
\entry {Network databases}{159}
\entry {Network information service}{159}
\entry {Never do in unix}{8}
\entry {NFS and C support}{162}
\entry {NIS}{159}
\entry {nobody}{11}
\entry {\code {noclobber} overwrite protection}{44}
\entry {\code {noclobber} variable}{44}
\entry {\samp {nslookup} command}{29}
\initial {O}
\entry {\samp {open} command in perl}{84}
\entry {\code {opendir} command}{126}
\entry {Opening a pipe in C}{135}
\entry {Operating system name}{29}
\entry {Operators in csh}{54}
\entry {Output to file}{45}
\entry {Output, sending to a file}{43}
\initial {P}
\entry {Painting program}{30}
\entry {Panic button}{51}
\entry {Parameters in perl functions}{87}
\entry {Parser}{147}
\entry {Parts of a filename}{58}
\entry {\file {passwd} file}{88}
\entry {\samp {paste}}{75}
\entry {Paste as a perl script}{84}
\entry {\samp {paste} command}{27}
\entry {\code {path}}{9}
\entry {path}{21}
\entry {\code {PATH}}{9}
\entry {Pattern matching in perl}{93, 95}
\entry {Pattern replacement in perl}{93}
\entry {PC windows}{6}
\entry {perl}{6}
\entry {Perl}{75}
\entry {Perl variables and types}{76}
\entry {Perl, strings and scalar}{77}
\entry {Perl, truncating strings}{86}
\entry {Permissions on files}{37}
\entry {Permissions, determining in C}{128}
\entry {\samp {pico}}{26}
\entry {Picture processing}{30}
\entry {\samp {pine} mailer}{28}
\entry {Pipe}{45}
\entry {Pipes}{43}
\entry {Pipes in C}{135}
\entry {Piping to more to prevent scrolling}{45}
\entry {\code {popen()}}{135}
\entry {POSIX standard}{117}
\entry {Postscript viewers}{30}
\entry {Printer queue}{27}
\entry {Printer status}{27}
\entry {\samp {PRINTER} variable}{27}
\entry {Printing a file}{27}
\entry {Printing multiple lines}{45}
\entry {Procedures and subroutines in sh}{71}
\entry {Process. moving to background}{50}
\entry {Processes}{48}
\entry {Prompt, redefining}{41}
\entry {Protecting files from overwrite with \samp {>}}{44}
\entry {Protection bits}{37}
\entry {\samp {ps} command}{29}
\initial {R}
\entry {\code {readdir} command}{126}
\entry {\code {readlink()}}{127}
\entry {\code {recv()}}{154}
\entry {Redefining list separator in sh}{70}
\entry {Redirecting stdio in sh}{64}
\entry {Redirection of stdio}{43}
\entry {Regular expressions}{23}
\entry {Reliable socket protocol}{157}
\entry {Renaming files}{26}
\entry {\code {repeat}}{56}
\entry {Result of a command into a string}{25}
\entry {Return codes}{66}
\entry {\samp {rlogin}}{26}
\entry {rlogin program}{31}
\entry {\samp {rm} command}{26}
\entry {\samp {rmail} in emacs}{28}
\entry {\samp {rmdir} command}{26}
\entry {Role of C in unix}{10}
\entry {Root privileges}{73}
\entry {root user}{11}
\entry {rpcgen}{10}
\entry {\samp {rpcinfo}}{29}
\entry {\samp {rsh}}{26}
\initial {S}
\entry {s-bit}{39, 40}
\entry {Scalar variables in perl}{77}
\entry {scheme}{29}
\entry {\samp {screen}}{26}
\entry {Screens}{34}
\entry {Script aliases in W3}{104}
\entry {Script, making}{51}
\entry {Scripts in sh, making}{65}
\entry {Searching and replacing in perl (example)}{94}
\entry {\samp {sed} as a perl script}{93}
\entry {\samp {sed} batch editor}{75}
\entry {\samp {sed} editor}{27}
\entry {\samp {sed}, search and replace}{55}
\entry {\code {send()}}{154}
\entry {Sending messages}{28}
\entry {\code {set} command}{42}
\entry {\code {setenv} command}{42}
\entry {setgid bit}{39}
\entry {Setting the prompt}{41}
\entry {Setting up the C shell}{41}
\entry {Setting up the x environment}{32}
\entry {setuid bit}{39}
\entry {SetUID scripts}{73}
\entry {\file {sh}}{10}
\entry {sh}{25}
\entry {sh5}{25}
\entry {Shared libraries}{118}
\entry {shell}{6, 9}
\entry {Shell commands and C library calls}{10}
\entry {\key {Shells, various}}{25}
\entry {\samp {shelltool}}{26}
\entry {\samp {shift} and arrays}{79}
\entry {\samp {shift} and arrays in perl}{79}
\entry {\code {shift} operator on strings}{65}
\entry {\samp {showmount}}{29}
\entry {Signal handler in sh}{71}
\entry {Single and double quotes}{47}
\entry {\samp {sleep} command}{62}
\entry {\code {socket()}}{153}
\entry {Sockets}{151}
\entry {Soft links}{13}
\entry {\samp {Sonar} ping}{30}
\entry {Spelling checker}{30}
\entry {\samp {split} and arrays}{79}
\entry {\samp {split} command}{79}
\entry {Splitting C into many files.}{117}
\entry {Splitting output to several files}{45}
\entry {Standard error}{10}
\entry {Standard I/O in perl}{84}
\entry {Standard I/O in sh}{64}
\entry {Standard I/O, redirection}{43}
\entry {Standard input}{10}
\entry {Standard output}{10}
\entry {Starting}{132}
\entry {Starting shell jobs}{50}
\entry {\code {stat()}}{127}
\entry {Static linking}{118}
\entry {Statistics about a file}{127}
\entry {Sticky bit}{40}
\entry {Strings in perl}{77}
\entry {\samp {stty} and switching off term echo}{88}
\entry {Subroutines in perl}{86}
\entry {Subshells and ()}{52}
\entry {Suffix rules in Makefiles}{121}
\entry {superuser}{11}
\entry {Suspending a job}{50}
\entry {Swapping text strings}{55}
\entry {\code {switch..case} in csh}{53}
\entry {Symbolic links}{13}
\entry {System 5}{7}
\entry {\samp {System details}}{29}
\entry {System identity and \samp {uname}}{55}
\entry {System name}{29}
\entry {System V}{7}
\initial {T}
\entry {t-bit}{40}
\entry {\key {TAB} completion key}{46}
\entry {\samp {talk} service}{28}
\entry {\samp {TCL}}{29}
\entry {TCP/IP}{151}
\entry {tcsh}{10, 25}
\entry {\samp {tee} command}{45}
\entry {Teletype terminal}{31}
\entry {telnet}{15}
\entry {\samp {telnet}}{26}
\entry {Terminal echo and \samp {stty}}{88}
\entry {Terminals}{26}
\entry {\samp {test} in sh}{67}
\entry {test programs}{9}
\entry {test, don't call your program this}{9}
\entry {Testing files}{53}
\entry {Testing reponse from other hosts.}{30}
\entry {Tests and conditions in csh}{53}
\entry {Tests in sh}{66}
\entry {\samp {tex}}{30}
\entry {\samp {texinfo} system}{30}
\entry {Text form of access bits}{38}
\entry {Text formatting}{30}
\entry {\samp {textedit}}{26}
\entry {The arguement vector in C}{125}
\entry {The domain name service}{160}
\entry {tiff}{30}
\entry {Time and date}{30}
\entry {Time stamp, updating}{26}
\entry {Tk library}{115}
\entry {\samp {touch} command}{26}
\entry {Traps in sh}{71}
\entry {Truncating strings in perl}{86}
\entry {tty}{31}
\entry {\samp {type} in DOS}{27}
\entry {Types in perl}{76}
\initial {U}
\entry {\code {umask} variable}{39}
\entry {\samp {uname} command}{55}
\entry {Undefining variables}{42}
\entry {undelete}{9}
\entry {UNIX}{5}
\entry {UNIX history}{5}
\entry {\samp {unless} in perl}{81}
\entry {\samp {unlink} command}{26}
\entry {\code {unset} command}{42}
\entry {\samp {until}}{69}
\entry {Up arrow}{46}
\entry {Updating file time stamp}{26}
\entry {User database support}{90}
\entry {User environment}{19}
\entry {\samp {users} command}{28}
\initial {V}
\entry {Variables, global}{22}
\entry {Variables, local}{22}
\entry {\samp {vi}}{26}
\entry {Viewing a file}{27}
\entry {\samp {vmstat} virtual memory stats}{29}
\initial {W}
\entry {\samp {w} command}{28}
\entry {\file {wait.h}}{135}
\entry {Waiting for child processes}{135}
\entry {\samp {whereis} command}{27}
\entry {which command}{21}
\entry {\code {while}}{56}
\entry {\samp {while} in perl}{81}
\entry {\samp {while} in sh}{69}
\entry {\code {while} loop in sh}{65}
\entry {\samp {who} command}{28}
\entry {\samp {whoami} command}{61}
\entry {Wildcards}{19, 22}
\entry {Windows on PC}{6}
\entry {Wrapper functions}{10}
\entry {Wrappers}{115}
\entry {\samp {write} command}{28}
\entry {\code {write} example}{52}
\entry {Writing a script}{51}
\entry {\code {WTERMSIG(status)}}{135}
\initial {X}
\entry {X access control}{34}
\entry {X display}{32, 33}
\entry {X protocol}{32}
\entry {X window system}{31}
\entry {X windows}{115}
\entry {X windows access}{33}
\entry {X windows authentification}{33}
\entry {X-windows}{19}
\entry {\samp {xarchie} client}{30}
\entry {Xauthority mechanism}{34}
\entry {\samp {xedit}}{26}
\entry {\samp {xemacs}}{26}
\entry {\samp {xfig} drawing program}{30}
\entry {xhost mechanism}{33}
\entry {\samp {xpaint} program}{30}
\entry {\samp {xrn} news reader}{30}
\entry {\samp {xterm}}{26}
\entry {xterm program}{31}
\entry {\samp {xv} picture processor}{30}
\entry {\samp {xxgdb}}{29}
\initial {Y}
\entry {yacc}{10}
\entry {\samp {yacc}}{115, 147}
\initial {Z}
\entry {\samp {zmail} client}{28}
\entry {zsh}{25}