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O’Reilly Books Latest LAMP Titles: mod_perl Pocket Reference SQL in a Nutshell Network Printing Books by topic: Linux Open Source Security System and Network Administration Unix Web and Internet O’Reilly Network Technologies: ONJava.com ONLamp.com openp2p.com Perl.com XML.com Apache BSD Java Javascript and CSS Linux Mac Mozilla .NET P2P Perl Policy PHP Python Web Services Wireless Print only unpairable lines from file filenum. –help Print help message and then exit. –version Print the version number and then exit. Return to: Alphabetical Directory of Linux Commands

Sponsored by: Search | Newsletter | Conference | Tech Jobs O’Reilly’s Emerging Technology Conference: May 13-16, 2002 Articles Linux Apache MySQL Perl PHP Python BSD Essentials What is LAMP? The Best of ONLamp.com aboutSQL Big Scary Daemons FreeBSD Basics HTTP Wrangler Linux in the Enterprise Linux Network Administration The Linux Professional Perl P5P Digest Archive PHP Admin Basics PHP Phanatics Python_News Security Alerts Alphabetical Directory of Linux Commands This directory of Linux commands is from Linux in a Nutshell, 3rd Edition. Click on any of the 379 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Tech Books Online. Buy it now Read it online join [options] file1 file2 Join lines of two sorted files by matching on a common field. If either file1 or file2 is -, read from standard input. Options -a filenum Print a line for each unpairable line in file filenum, in addition to the normal output. -e string Replace missing input fields with string. -i, –ignore-case Ignore case differences when comparing keys. -1 fieldnum1 Join field in file1 is fieldnum1. Default is the first field. -2 fieldnum2 Join field in file2 is fieldnum2. Default is the first field. -o fieldlist Order the output fields according to fieldlist, where each entry in the list is in the form filenum.fieldnum. Entries are separated by commas or blanks. -t char Specifies the field-separator character (default is whitespace ). -v filenum Sponsored by:

XML Invoke shell and execute command in it. Prompt before exiting. a Accept word as correctly spelled, but do not add it to personal dictionary. i Accept word and add it (capitalized, if so in file) to personal dictionary. l Search system dictionary for words. q Exit without saving. r Replace word. u Accept word and add lowercase version of it to personal dictionary. x Skip to the next file, saving changes. ^L Redraw screen. ^Z Suspend ispell. Return to: Alphabetical Directory of Linux Commands Copyright 2000-2002 O’Reilly & Associates, Inc. All Rights Reserved. All trademarks and registered trademarks appearing on the O’Reilly Network are the property of their respective owners. For problems or assistance with this site, email help@oreillynet.com

O’Reilly Books Latest LAMP Titles: mod_perl Pocket Reference SQL in a Nutshell Network Printing Books by topic: Linux Open Source Security System and Network Administration Unix Web and Internet O’Reilly Network Technologies: ONJava.com ONLamp.com openp2p.com Perl.com XML.com Apache BSD Java Javascript and CSS Linux Mac Mozilla .NET P2P Perl Policy PHP Python Web Services Wireless -B Search for missing blanks (resulting in concatenated words) in addition to ordinary misspellings. -C Do not produce error messages in response to concatenated words. -L number Show number lines of context. -M List interactive commands at bottom of screen. -N Suppress printing of interactive commands. -P Do not attempt to suggest more root/affix combinations. -S Sort suggested replacements by likelihood that each is correct. -T type Expect all files to be formatted by type. -W n Never consider words that are n characters or less to be misspelled. -V Use hat notation (^L) to display control characters and M- to display characters with the high bit set. Interactive Commands ? Display help screen. space character Accept the word in this instance. number Replace with suggested word that corresponds to number. !command

Sponsored by: Search | Newsletter | Conference | Tech Jobs O’Reilly’s Emerging Technology Conference: May 13-16, 2002 Articles Linux Apache MySQL Perl PHP Python BSD Essentials What is LAMP? The Best of ONLamp.com aboutSQL Big Scary Daemons FreeBSD Basics HTTP Wrangler Linux in the Enterprise Linux Network Administration The Linux Professional Perl P5P Digest Archive PHP Admin Basics PHP Phanatics Python_News Security Alerts Alphabetical Directory of Linux Commands This directory of Linux commands is from Linux in a Nutshell, 3rd Edition. Click on any of the 379 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Tech Books Online. Buy it now Read it online ispell [options] [files] Compare the words of one or more named files with the system dictionary. Display unrecognized words on the top of the screen, accompanied by possible correct spellings, and allow editing, via a series of commands. Options -b Back up original file in filename.bak. -d file Search file instead of standard dictionary file. -m Suggest different root/affix combinations. -n Expect nroff or troff input file. -p file Search file instead of personal dictionary file. -t Expect TeX or LaTeX input file. -w chars Consider chars to be legal, in addition to a-z and A-Z. -x Do not back up original file. Sponsored by:

XML Copyright 2000-2002 O’Reilly & Associates, Inc. All Rights Reserved. All trademarks and registered trademarks appearing on the O’Reilly Network are the property of their respective owners. For problems or assistance with this site, email help@oreillynet.com

O’Reilly Books Latest LAMP Titles: mod_perl Pocket Reference SQL in a Nutshell Network Printing Books by topic: Linux Open Source Security System and Network Administration Unix Web and Internet O’Reilly Network Technologies: ONJava.com ONLamp.com openp2p.com Perl.com XML.com Apache BSD Java Javascript and CSS Linux Mac Mozilla .NET P2P Perl Policy PHP Python Web Services Wireless

Sponsored by: Search | Newsletter | Conference | Tech Jobs O’Reilly’s Emerging Technology Conference: May 13-16, 2002 Articles Linux Apache MySQL Perl PHP Python BSD Essentials What is LAMP? The Best of ONLamp.com aboutSQL Big Scary Daemons FreeBSD Basics HTTP Wrangler Linux in the Enterprise Linux Network Administration The Linux Professional Perl P5P Digest Archive PHP Admin Basics PHP Phanatics Python_News Security Alerts Alphabetical Directory of Linux Commands This directory of Linux commands is from Linux in a Nutshell, 3rd Edition. Click on any of the 379 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Tech Books Online. Buy it now Read it online iptables-save [chain] System administration command. Print the IP firewall rules currently stored in the kernel to stdout. If no chain is given, all chains will be printed. Output may be redirected to a file that can later be used by iptables-restore to restore the firewall. This command was not completed at the time this book went to print. There may be options not listed here. Return to: Alphabetical Directory of Linux Commands Sponsored by:

XML Copyright 2000-2002 O’Reilly & Associates, Inc. All Rights Reserved. All trademarks and registered trademarks appearing on the O’Reilly Network are the property of their respective owners. For problems or assistance with this site, email help@oreillynet.com

O’Reilly Books Latest LAMP Titles: mod_perl Pocket Reference SQL in a Nutshell Network Printing Books by topic: Linux Open Source Security System and Network Administration Unix Web and Internet O’Reilly Network Technologies: ONJava.com ONLamp.com openp2p.com Perl.com XML.com Apache BSD Java Javascript and CSS Linux Mac Mozilla .NET P2P Perl Policy PHP Python Web Services Wireless