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sed command with -i option (in-place editing) works fine on Ubuntu but not Mac [duplicate]
... That's simpler than trying to work out which variant of sed you have installed or other gizmos I've seen suggested. I hope you keep the file under version control (or otherwise backed up) so that you can recover if there's a bug in your sed script. Of course, the .bak file gives you that protect...
Weak and strong property setter attributes in Objective-C
...g' part (casting from NS to CF) is a little tricky. You still have to manually manage CFRelease() and CFRetain() for CF objects. When you convert them back to NS objects you have to tell the compiler about the retain count so it knows what you have done.
Its all here.
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How should I use git diff for long lines?
...nment variable. If you don't mind about paging (for example, your terminal allows you to scroll back) you might try explicitly setting GIT_PAGER to empty to stop it using a pager. Under Linux:
$ GIT_PAGER='' git diff
Without a pager, the lines will wrap.
If your terminal doesn't support coloured...
How do I determine which iOS SDK I have?
..., but how do I determine which version of the iOS SDK I currently have installed?
5 Answers
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Random hash in Python
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I would've used os.urandom because wanting an MD5 hash might mean wanting a secure one.
– Unknown
Jun 11 '09 at 22:58
9
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In Python, how do I create a string of n characters in one line of code?
...ly, of course;-).
Other ways to "make a string of 10 characters": 'x'*10 (all the ten characters will be lowercase xs;-), ''.join(chr(ord('a')+i) for i in xrange(10)) (the first ten lowercase letters again), etc, etc;-).
sh...
Linux command to print directory structure in the form of a tree
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Is this what you're looking for tree? It should be in most distributions (maybe as an optional install).
~> tree -d /proc/self/
/proc/self/
|-- attr
|-- cwd -> /proc
|-- fd
| `-- 3 -> /proc/15589/fd
|-- fdinfo
|-- net
| |-- dev_snmp6
| |-- netfilter
| |-- rpc
| ...
WAMP shows error 'MSVCR100.dll' is missing when install
When I tried to install WAMP , that popped up the following alert,
23 Answers
23
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How can I reverse the order of lines in a file?
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Especially worth mentioning to those using a version of tail with no -r option! (Most Linux folks have GNU tail, which has no -r, so we have GNU tac).
– oylenshpeegul
Apr 12 '09 at 21:48
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通过FastCGI Cache实现服务降级 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... }
location ~ \.php$ {
set $cache_key $request_method://$host$request_uri;
set $cache_bypass "1";
if ($arg_failover = "1") {
set $cache_bypass "0";
}
try_files $uri =404;
include fastcgi.conf;
fastcgi_pass ph...