Man pages have been around since before I was born (circa 1971, actually). The people who will take an interest in this post are most likely familiar with the 'man' documentation format for most UNIX commands. While little has changed in the form and function of the man page - besides spawning some offshoots like GNU's info - the options for reading them in a more pleasant GUI environment have grown more diverse. Mac OS X users have a few options beyond typing 'man xyz' into the Terminal or using man pages on the web...

There are Cocoa applications like Man Viewer, Man Handler and ManOpen which allow you to search for and browse man pages in a way more familiar to OS X users. They all perform text searches within an opened page, Man Handler having the most Leopard-friendly results. To the best of my knowledge, only ManOpen allows for Apropos searches which allow you to find man pages based on their subject matter. I also like the ability to open several man pages simultaneously, which ManOpen and Man Handler provide but Man Viewer does not. Rather, Man Viewer provides a single-window interface, which has its upsides as well.

Most of the Cocoa viewers do not handle hypertext links within the man pages (ManOpen provides related links). For a fluid solution in that area, there's Bwana or Sogudi (the Safari 3 version of Sogudi is currently a beta), tools that integrate with Safari to allow the opening of man pages right in the browser with code highlighting and links to related pages. While Bwana is an application, Sogudi is an InputManager which allows and both allow you to type man:mdfind in the url field to load a pretty (man2html) version of mdfind's man page (with Bwana, you can also use 'open man:mdfind' from the command line) . And with both you get a tabbed interface and great search features to boot. If you've already got Safari open for other purposes, it's a great way to make use of the browser. By the same token, it's a lot of app to load if you just want to remember an ls switch.

Another option - which may be great in some instances and fairly worthless in others - is Man2PDF. Basically, it produces a well-formatted PDF of the selected man page. Perfect for printing and viewing with Preview, but not the best choice for quick consultation.

Were I asked to pick a winner, and Safari was already running, I'd say Sogudi wins for good looks (inherited, in part, from Safari) and great usability. ManOpen wins in the standalone category with its Apropos search and hypertext links.

Of course, a vanilla man command wins for easy accessibility where you need it most.

Motivated by the relative limitations of the existing BSD subsystem, Freeman decided to port Debian's APT to the iPhone -- tweaking items to work better with the iPhone's relatively messed-up network settings. A UIKit front end, Cydia, provides a GUI for users to select and install programs -- basically Installer.app for fully leaded geeks. Cydia isn't limited to command-line software. It should allow installation of any and all software package types.

Among other changes, NerveGas has rebuilt the kext tools, added reboot, mknod, a working chown and vmstat. Other new items include chflags, lsvfs, mkfifo (and friends), tee, renice, and cap_mkdb. You might notice one big missing item: minicom. NerveGas will be releasing minicom as a separate package. NerveGas has also updated ssh.

Over at the #iphone channel at irc.osx86.hu, the thoroughly awesome NerveGas has figured out how to enable ssh on the iPhone without using restore mode. The secret lies in overwriting an existing binary and plist to trick the iPhone into calling chmod on the Dropbear ssh server and making it executable.

At this time, NerveGas has used Nightwatch's compiler to create iPhone-compatible versions of curl and ps as well as a number of other useful Unix utilities. (He's working on grep, as I write).

So what does this mean? Well, once you've got ssh installed on your iPhone and active, you can access your iPhone from a shell on your Mac. You can send and retrieve files using scp or sftp. And you can use the compilation toolchain to build other Unix utils or even your own software. It's just a short matter of time until perl and other command-line utilities are iPhone-ready.

Continue reading ssh on iPhone

As our own Mike Rose points out, the license exceptions seem to allow third party plug-in developers to keep their source code private. Developers (including Apple) can distribute derivative work and be exempt from the mandatory source code release clauses of the GNU GPL so long as the exception is limited to Mac OS X and not for use on other operating systems. Just remember: we are not lawyers, and the exception language is convoluted.

Thanks, Daniel.

Update: Nilay Patel from Engadget adds: Apple isn't affected by the license terms of CUPS, since they own it. A license only affects licensees, not owners. Apple could fork CUPS and close the source tomorrow and no one could do anything about it, although I'm certain the terms of the sale included a promise that Apple would keep it GPL'd for a certain period of time. The exception appears to be geared to printer manufacturers so they can write drivers and not have to open their code -- which is interesting, since the GPL already provides a mechanism for this sort of distribution, called the "mere aggregation" clause.. Disclaimer: Although Nilay is a lawyer, this information is not legal advice or analysis and should not be construed as such. Thanks Nilay.

Continue reading Monday man page: curl

 lsof [ -?abChlnNOPRstUvVX ] [ -A A ] [ -c c ] [ +c c ] [ +|-d d ] [
 +|-D D ] [ +|-f [cfgGn] ] [ -F [f] ] [ -g [s] ] [ -i [i] ] [ -k k ] [
 +|-L [l] ] [ +|-m m ] [ +|-M ] [ -o [o] ] [ -p s ] [ +|-r [t] ] [ -S
 [t] ] [ -T [t] ] [ -u s ] [ +|-w ] [ -x [fl] ] [ -z [z] ] [ -- ]
 [names]

Continue reading Monday man page: lsof