Apple Shell-Scripting Primer

Doctor Q · May 30, 2006, 03:03 PM

For those who are interested in learning more about writing Unix-style shell scripts under Mac OS X, Apple has authored a Shell Scripting Primer.

You can read it in web form here or download it as a PDF here.

yellow · May 30, 2006, 03:27 PM

Huh. Interesting find, Doc.

I assume you found it looking for alternate way to use the Monte Carlo method for approximating the value of Pi?

hhlee · May 30, 2006, 04:37 PM

nice find! i usually look for anything to do with bash and that seems to work well.

MinkysBear · Jan 6, 2009, 03:27 PM

When I ran the command
diff -qr dirA dirB | sort > diffs.txt

I received a lot of notifications that the "._filename.extension" were different on the one volume but not the other. What had happened is that that volume is formatted as MS-DOS (FAT32) and the other is as Mac OS Extended (Journaled).

When I grep'ed through the diffs.txt file, I used the two flags as suggested above but this time removing any of those files that had the ._ in them

grep -v -e '._' diffs.txt
or
grep -v -e ': .' diffs.txt // since the format was "full_path: filename"

... that showed me the real differences between the directories.

Thanks!

May 30, 2006, 03:03 PM	#1
Doctor Q macrumors god Join Date: Sep 2002 Location: Chu-anz W'allo	Apple Shell-Scripting Primer For those who are interested in learning more about writing Unix-style shell scripts under Mac OS X, Apple has authored a Shell Scripting Primer. You can read it in web form here or download it as a PDF here. __________________ >INPUTFOODCODE:MENU<BACON>;V,'CRISPY': (CIN>>EGGS)OVEREASY//N++(TOAST)/>>LIQ,(O_J)N:(NOPULP)<

May 30, 2006, 03:27 PM	#2
yellow Demi-God (Moderator) Join Date: Oct 2003 Location: I love you, food.	Huh. Interesting find, Doc. I assume you found it looking for alternate way to use the Monte Carlo method for approximating the value of Pi? __________________ Why do the Vs speak English?

Jan 6, 2009, 03:27 PM	#4
MinkysBear macrumors newbie Join Date: Apr 2008 Location: Ohio	Diff'ing between MS-DOS (FAT32) and Mac OS Extended (Journaled) Volumes When I ran the command diff -qr dirA dirB \| sort > diffs.txt I received a lot of notifications that the "._filename.extension" were different on the one volume but not the other. What had happened is that that volume is formatted as MS-DOS (FAT32) and the other is as Mac OS Extended (Journaled). When I grep'ed through the diffs.txt file, I used the two flags as suggested above but this time removing any of those files that had the ._ in them grep -v -e '._' diffs.txt or grep -v -e ': .' diffs.txt // since the format was "full_path: filename" ... that showed me the real differences between the directories. Thanks! __________________ MacBook Pro 15" Core 2 Duo 2.4 GHz 2 GB RAM \| 22" HP Widescreen Flat Panel Display \| Mighty Mouse \| Bluetooth Keyboard

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May 30, 2006, 04:37 PM	#3
hhlee macrumors 6502 Join Date: May 2005	nice find! i usually look for anything to do with bash and that seems to work well.