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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 dumpkeys [options] Print information about the keyboard driver’s translation tables to standard output. Further information is available in the manual pages under keytables. Options -1, –separate-lines Print one line for each modifier/keycode pair and prefix plain to each unmodified keycode. -ccharset, –charset=charset Specify character set with which to interpret character code values. The default character set is iso-8859-1. The full list of valid character sets is available with the –help option. –compose-only Print compose key combinations only. Requires compose key support in the kernel. -f, –full-table Output in canonical, not short, form: for each key, print a row with modifier combinations divided into columns. –funcs-only Print function key string definitions only; do not print key bindings or string definitions. -h, –help Print help message and the version. -i, –short-info Sponsored by:

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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

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 dumpe2fs device System administration command. Print information about device’s superblock and blocks group. 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 -L, –dereference Follow symbolic links. –exclude=pattern Exclude files that match pattern. –max-depth=num Report sizes for directories only down to num levels below the starting point (which is level 0). -m, –megabytes Print sizes in megabytes. -s, –summarize Print only the grand total for each named directory. -S, –separate-dirs Do not include the sizes of subdirectories when totaling the size of parent directories. -x, –one-file-system Display usage of files in current filesystem only. -X, –exclude-from=file Exclude files that match any pattern in file. –help Print help message and then exit. –version Print the version 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 du [options] [directories] Print disk usage (as the number of 1KB blocks used by each named directory and its subdirectories; default is current directory). Options -a, –all Print usage for all files, not just subdirectories. -b, –bytes Print sizes in bytes. -c, –total In addition to normal output, print grand total of all arguments. -D, –dereference-args Follow symbolic links, but only if they are command-line arguments. -h, –human-readable Print sizes in human-reader-friendly format. -H, –si Like -h, but show as power of 1000 rather than 1024. -k, –kilobytes Print sizes in kilobytes (this is the default). -l, –count-links Count the size of all files, whether or not they have already appeared (i.e., via a hard link). 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 Display timing statistics. -v Verbose. -y When queried, answer “yes.” -B size Expect to find the superblock at size; if it’s not there, exit. -F Flush buffer caches before checking. -L file Consult file for list of bad blocks instead of checking filesystem for them. 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 dosfsck [options] device fsck.ext2 [options] device System administration command. Similar to fsck, but specifically intended for MS-DOS filesystems. When checking an MS-DOS filesystem, fsck calls this command. Normally dosfsck stores all changes in memory, then writes them when checks are complete. Options -a Automatically repair the system; do not prompt the user. -A Use the Atari version of the MS-DOS filesystem. -d file Drop the named file from the file allocation table. Force checking, even if kernel has already marked the filesystem as valid. dosfsck will normally exit without checking if the system appears to be clean. -l file Consult file for a list of bad blocks, in addition to checking for others. -n Ensure that no changes are made to the filesystem. When queried, answer “no.” -p “Preen.” Repair all bad blocks noninteractively. -t Sponsored by: