3,093 reputation
1530
bio website None
location United States
age 53
visits member for 5 years, 1 month
seen Aug 27 at 17:15
Long-time Informix user and developer, experienced in C and Unix (many variants). Email: jonathan.leffler@gmail.com

Apr
7
comment Error: Mac OS version: Not yet set
Basically, until the HP Pavilion becomes a Mac, it won't work very reliably and even less legally.
Feb
11
comment How to kill all the processes that have dates older than today?
@Tony: So you mean 'all my processes that were started before today', not 'all the processes that were started before today'; there is a big difference. And you're always entitled to clean up all your processes if you want to.
Feb
11
comment How to kill all the processes that have dates older than today?
The question is how to write a shell program to do the processing; that is a question about programming, and is therefore on-topic for StackOverflow which is about programming - including shell programming. And even if the code is not written in shell (maybe Perl or Python instead), it is still about writing a program to do a job, and is therefore on-topic for StackOverflow.
Dec
25
comment How to Suppress Repetition of Warnings That an Application Was Downloaded From the Internet on Mac OS X?
Thanks for the Secrets URL.
Dec
15
comment unix how to find the space occupied
If you really want just the number, don't you use du --bytes -s /home?
Nov
17
comment How do I keep my bash history across sessions?
He is asking "How do I keep my bash history across sessions?", which is related to shell programming. The reboot is a dramatic way of losing your shell, that's all. It doesn't need closing off topic.
Sep
26
comment Compress and uncompress of files in UNIX
If the primary development audience works on Unix or one of its derivatives, I recommend not using zip. It annoys me when I have to use zip; it doubly annoys me if I have to convert line-endings. That's not to say that the converse problem does not apply - those who are Windows-centric prefer zip (unless they have Cygwin or MingW or something similar installed, and come from a Unix background). So, it depends on purpose and target audience.
Sep
21
comment Users in /etc/passwd on Mac OS X
My password file tells the same fib. I did find dsconfigad.
Sep
21
comment Users in /etc/passwd on Mac OS X
Hmmm...Apple says "Mac OS X v10.5 includes two utilities used to bind computers to Microsoft Active Directory. Directory Utility is an application, and dsconfigad is a command-line utility accessed through Terminal. Both may be used to configure the Active Directory connector in Directory Utility."
Sep
21
comment Users in /etc/passwd on Mac OS X
I went looking for something like that (Directory Utility) - and it isn't there in my Snow Leopard install...any idea what I could be missing - how it got there on yours?
Sep
14
comment linux universal archive handling utility
Funny - the close votes say "doesn't belong here", but one chooses SU and the other SF.
Sep
14
comment linux universal archive handling utility
What sort of archives are you thinking of? TAR vs ZIP? Or 'ar' vs the Windows librarian? Or something else?
Sep
11
comment The parent of the root directory
@Tyler: once upon an æon or so ago (7th Edition Unix), root could run the link(2) system call on directories - because there wasn't a mkdir(2) system call and therefore the . and .. entries were created by a root-privileged mkdir program. However, I believe that privilege has been removed even from root these days; you cannot hard-link directories.
Sep
2
comment Editing softlinked files in UNIX
Report a bug in the editor - not nice behaviour.
Aug
7
comment cp command not working with wildcards on Mac OS X
I really don't see why shell programming questions do not belong on SO. There's no need to move this.
Jul
28
comment Options to optimize lotus notes 8.5.X
I'm sorely tempted to say that the software that isn't there is fastest and most reliable (and poses the least security risk), and the best way to speed up Notes is to delete it. Unfortunately, it isn't always an option.
Jul
18
comment mount dev, proc, sys in a chroot environment?
Beware: granting access to the disk devices means that you lose some of the benefits of 'chroot()'. In particular, the determined can read files outside of their section of the file system if you are not careful.
Jul
4
comment Is there a Firefox shortcut to copy the URL of the current page?
@msw: that's a bit like asking "if you call a tail a leg, how many legs does a dog have?"...
Jul
4
comment Is there a Firefox shortcut to copy the URL of the current page?
Or, on MacOS X: Command-L followed by Command-C.
Jul
2
comment Linux permissions!
Firefox should not be world-writable; anybody can overwrite with their choice of malicious program.