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 free [options] Display statistics about memory usage: total free, used, physical, swap, shared, and buffers used by the kernel. Options -b Calculate memory in bytes. -k Default. Calculate memory in kilobytes. -m Calculate memory in megabytes. -o Do not display “buffer adjusted” line. The -o switch disables the display “-/+ buffers” line. -s time Check memory usage every time seconds. -t Display all totals on one line at the bottom of output. -V Display version information. Return to: Alphabetical Directory of Linux Commands Sponsored by:
XML -A headerfield Append headerfield whether or not it already exists. -B Assume that input is in BABYL rmail format. -D maxlen idcache Remember old message IDs (in idcache, which will grow no larger than approximately maxlen). When splitting, refuse to output duplicate messages. Otherwise, return true on discovering a duplicate. With -r, look at the sender’s mail address instead of the message ID. -I headerfield Append headerfield whether or not it already exists. Remove existing fields. -R oldfield newfield Change all fields named oldfield to newfield. -U headerfield Delete all but the last occurrence of headerfield. -Y Format in traditional Berkeley style (i.e., ignore Content-Length fields). -X headerfield Display the field name and contents of headerfield on a single line. 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 Do not edit non-mailbox-format lines. By default, formail prepends From to such lines. -i headerfield Append headerfield whether or not it already exists. Rename each existing headerfield to Old-headerfield, unless they are empty. -k For use only with -r. Keep the body as well as the fields specified by -r. -m minfields Require at least minfields before recognizing the beginning of a new message. Default is 2. -n Allow simultaneous formail processes to run. -p prefix Escape lines with prefix instead of >. -q Do not display write errors, duplicate messages, and mismatched Content-Length fields. This is the default; use -q- to turn it off. -r Throw away all existing fields, retaining only X-Loop, and generate autoreply header instead. You can preserve particular fields with the -i option. -s Must be the last option; everything following it will be assumed to be its arguments. Divide input to separate mail messages, and pipe them to the program specified or concatenate them to standard output (by default). -t Assume sender’s return address to be valid. (By default, formail favors machine-generated addresses.) -u headerfield Delete all but the first occurrence of headerfield. -x headerfield Display the contents of headerfield on a single line. -z When necessary, add a space between field names and contents. Remove (”zap”) empty fields.
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 formail [options] Filter standard input into mailbox format. If no sender is apparent, provide the sender foo@bar. By default, escape bogus From lines with >. Options +skip Do not split first skip messages. -total Stop after splitting total messages. -a headerfield Append headerfield to header, unless it already exists. If headerfield is Message-ID or Resent-Message-ID with no contents, generate a unique message ID. -b Do not escape bogus From lines. -c When header fields are more than one line long, concatenate the lines. -d Do not assume that input must be in strict mailbox format. -e Allow messages to begin one immediately after the other; do not require empty space between them. -f 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 fold [option] [files] Break the lines of the named files so that they are no wider than the specified width (default is 80). fold breaks lines exactly at the specified width, even in the middle of a word. Reads from standard input when given - as a file. Options -b, –bytes Count bytes, not columns (i.e., consider tabs, backspaces, and carriage returns to be one column). -s, –spaces Break at spaces only, if possible. -w, –width width Set the maximum line width to width. Default is 80. 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 Print help message and then exit. –version Print version information and then exit. Return to: Alphabetical Directory of Linux Commands