All Questions
73
questions
100
votes
2
answers
179k
views
How do I clear out the ssh-agent entries (on Mac OS X )?
I'm running Mac OS X, and it appears that after SSHing to several machines, using identity files, my 'ssh-agent' builds up a lot of identity / keys and then sometimes offers too many to a ...
- 18.3k
39
votes
2
answers
29k
views
what does the @ symbol mean in ls -l directory listing? [duplicate]
Possible Duplicate:
ls -la symbolics… what does that last symbol mean?
When I run ls -l on my mac I see two .yml files:
-rw-r--r-- 1 aa staff 6 Apr 15 05:50 s1.yml
-rw-r--r--@ 1 aa ...
- 651
29
votes
3
answers
68k
views
What does kill -3 mean?
I know what kill -9 means, but anyone can explain what does kill -3 mean? Is there any special signal it sends out?
- 1,445
25
votes
4
answers
10k
views
How to get tree -a to ignore .git directories?
I love using tree to list directories, and I have a git repository with all my dotfiles. For me to be able to see them I need to do tree -a, but that will also list the contents inside the .git ...
user308285
25
votes
4
answers
56k
views
What's the difference between .profile and .bash_profile, and when do you configure which? (Mac) [duplicate]
Possible Duplicate:
Difference between .bashrc and .bash_profile
What's the difference between .profile and .bash_profile, and when do you configure which?
I.e if I configure the .bash_profile, ...
- 373
20
votes
6
answers
110k
views
tcpdump – rotate capture files using -G, -W and -C
I'm looking to be able to capture a rotating tcpdump output which captures 30 minutes worth of data, into 48 files, cyclically.
The man page implies this should be possible, but my testing doesn't ...
- 558
18
votes
3
answers
10k
views
How to list directories names but not their contents, in *N*X?
If I do a simple ls specifying a filename pattern, like ls A*, for directories that match the pattern, it will enter the directory and give the full listing, but how could I get just the listing for ./...
- 3,883
12
votes
4
answers
15k
views
Rsync over ssh, or something else?
I've been trying to use rsync on OSX to Linux or Unix box over which I don't have much control. I've been doing something like this
rsync -avz -e ssh remoteuser@remotehost:/remote/dir /this/dir/
...
- 6,598
11
votes
3
answers
12k
views
What is the Unix PATH variable and how do I add to it?
Many programming tutorials ask users to add something to their PATH but don't explain what it is. The existing resources that explain the PATH to users new to the command line are not very good.
What ...
- 939
10
votes
3
answers
7k
views
Expanding globs in xargs
I have a directory like this
mkdir test
cd test
touch file{0,1}.txt otherfile{0,1}.txt stuff{0,1}.txt
I want to run some command such as ls on certain types of files in the directory and have the * (...
- 273
8
votes
2
answers
2k
views
Passing options to a program: what's the convention for one dash vs two?
Some programs will take options like this:
$ someprogram -orange apple
And other programs will use something like this:
$ otherprogram --orange apple
Is there a "rule" or convention for this in ...
- 730
7
votes
2
answers
4k
views
How do you use "sips" at the terminal to resize an image, without upscaling?
I have some code that I've been using to resize images in Mac OS X via the command prompt (and/or quicksilver), to a maximum width or height of 500px. The only problem is that if the original image is ...
- 18.3k
6
votes
2
answers
5k
views
Syntax for find on Mac OS X
I have a project directory that contains source code and subdirectories of source code. I want to use the Unix program find to search recursively for the names of files of certain extensions. The ...
- 2,747
6
votes
3
answers
3k
views
Mac OS X Linux Unix version
What Linux or Unix version underlies Mac OS, OS X 10.6?
Is there a good documentation for that version, specifically regarding security, networks and similar topics?
- 255
5
votes
10
answers
15k
views
Is there a simpler form of find . -name "*substring_of_filename*" on Mac OS X and Linux?
On Mac OS X or Linux, is there a simpler form of the command
find . -name "*substring_of_filename*"
which is to find all files having names containing substring_of_filename within the current ...
Ruler Theodore