I was a bit stumped when I stumbled into PowerVR's iPhone SDK for OGL ES 1.1. namely, I wasn't sure what PerspectiveFovRH was for... I messed around with the numbers a little, and discovered the relationship between PerspectiveFovRH and the usual glFrustum method:
glFrustum(frustumLeft, frustumRight, frustumBottom, frustumTop, frustumNear, frustumFar)
is the same as:
float fovy = 2 * atanf( (frustumTop - frustumBottom) / (2 * frustumNear) );
PerspectiveFovRH(fovy, 320/480, frustumNear, frustumFar, OGL, false);
COCOA: OpenGL View
I tried to render a box in OpenGL, and for some strange reason, the depth test wasn't working at all. Finally I googled the problem, and found out it was caused by the Interface Builder... this is why I avoid IB when developing...
Here's what the screen-capture looked like, even though I had enabled GL_DEPTH_TEST
basically you have to set the depth bit of the OpenGLView to be > 0 bit (which is default!?). While I was at it, I also changed the color to 32bit.
Here's what the screen-capture looked like, even though I had enabled GL_DEPTH_TEST
basically you have to set the depth bit of the OpenGLView to be > 0 bit (which is default!?). While I was at it, I also changed the color to 32bit.
Win32: Setting up OpenGL's GLUT
it's been a very long time since my previous posts. i had to recently install opengl on my windows xp environment, and found there were actually very little documentation on this subject. so here's a tutorial to getting things started in opengl & glut.
CHECK FOR OpenGL:
1. when you install visual studios, you should already have the following libraries and DLLs:
- OpenGL32.lib (in C:\Program Files\Microsoft SDKs\Windows\v6.0A\Lib, etc)
- GLU32.lib (in C:\Program Files\Microsoft SDKs\Windows\v6.0A\Lib, etc)
2. make sure you see the following dll's in C:\Windows\System32
- OpenGL32.dll
- GLU32.dll
BUILD & INSTALL GLUT:
1. goto http://www.opengl.org/resources/libraries/glut/glut_downloads.php
- i downloaded 3.7.6 from http://www.xmission.com/~nate/glut.html
- download glut-3.7.6-src.zip
2. unzip glut-3.7.6/ directory onto the desktop
3. open glut.dsw
4. build the glut32 project
if you have visual studios 6, you should be fine. however, if you have visual studio 9.0 like me, you'll end up with an error during file copy, so you have to do some manual copying and pasting...
1. inside the [[DESKTOP]]/glut-3.7.6/ directory navigate to:
- [[DESKTOP]]/glut-3.7.6/lib/glut/Debug
2. copy glut32.dll into C:\Windows\System32
3. Copy glut32.lib into C:\Program Files\Microsoft Visual Studio 9.0\VC\lib
4. Copy [[DESKTOP]]/glut-3.7.6/include/GL/glut.h to C:\Program Files\Microsoft Visual Studio 9.0\VC\include\GL\glut.h
after this you should be able to start compiling the samples from the OpenGL red book.
CHECK FOR OpenGL:
1. when you install visual studios, you should already have the following libraries and DLLs:
- OpenGL32.lib (in C:\Program Files\Microsoft SDKs\Windows\v6.0A\Lib, etc)
- GLU32.lib (in C:\Program Files\Microsoft SDKs\Windows\v6.0A\Lib, etc)
2. make sure you see the following dll's in C:\Windows\System32
- OpenGL32.dll
- GLU32.dll
BUILD & INSTALL GLUT:
1. goto http://www.opengl.org/resources/libraries/glut/glut_downloads.php
- i downloaded 3.7.6 from http://www.xmission.com/~nate/glut.html
- download glut-3.7.6-src.zip
2. unzip glut-3.7.6/ directory onto the desktop
3. open glut.dsw
4. build the glut32 project
if you have visual studios 6, you should be fine. however, if you have visual studio 9.0 like me, you'll end up with an error during file copy, so you have to do some manual copying and pasting...
1. inside the [[DESKTOP]]/glut-3.7.6/ directory navigate to:
- [[DESKTOP]]/glut-3.7.6/lib/glut/Debug
2. copy glut32.dll into C:\Windows\System32
3. Copy glut32.lib into C:\Program Files\Microsoft Visual Studio 9.0\VC\lib
4. Copy [[DESKTOP]]/glut-3.7.6/include/GL/glut.h to C:\Program Files\Microsoft Visual Studio 9.0\VC\include\GL\glut.h
after this you should be able to start compiling the samples from the OpenGL red book.
WINDOWS: Registry
To add something to the RIGHT CLICK context menu, we can change the registry.
In my particular instance, I am looking to add a QUICK COMMAND that will run the JAD file in MPowerPlayer.
1. Goto: My Computer > HKEY_CLASSES_ROOT > jadfile
2. Expand jadfile > shell, and add a key "Run with MPowerPlayer"
3. Add a key under "Run with MPowerPlayer" called "command"
4. On the right, double click (Default), add the following data: java -jar C:\\mpowerplayer\\player.jar "%1"
That's all. Now right click on the JAD file and you should see your new command "Run with MPowerPlayer.
NOTE: you will want to change the directory location of mpowerplayer\player.jar to match your own.
Here's the entire structure after you are done (added 'Edit' command for comparison):
My Computer
----L HKEY_CLASSES_ROOT
---------L jadfile
--------------L shell
------------------L Run with MPowerPlayer
-----------------------L command = java -jar ... (see above)
------------------L Edit
-----------------------L command = notepad.exe "%1"
In my particular instance, I am looking to add a QUICK COMMAND that will run the JAD file in MPowerPlayer.
1. Goto: My Computer > HKEY_CLASSES_ROOT > jadfile
2. Expand jadfile > shell, and add a key "Run with MPowerPlayer"
3. Add a key under "Run with MPowerPlayer" called "command"
4. On the right, double click (Default), add the following data: java -jar C:\\mpowerplayer\\player.jar "%1"
That's all. Now right click on the JAD file and you should see your new command "Run with MPowerPlayer.
NOTE: you will want to change the directory location of mpowerplayer\player.jar to match your own.
Here's the entire structure after you are done (added 'Edit' command for comparison):
My Computer
----L HKEY_CLASSES_ROOT
---------L jadfile
--------------L shell
------------------L Run with MPowerPlayer
-----------------------L command = java -jar ... (see above)
------------------L Edit
-----------------------L command = notepad.exe "%1"
IPHONE: Saving data on exit
Totatlly forgot how to do this, so I had to look it up...
Use the following methods to catch application exit notifications:
- (void)applicationWillTerminate:(UIApplication *)application
Use this method to catch application interrupt notification:
- (void)applicationWillResignActive:(UIApplication *)application
Use this method to catch application resume notification:
- (void)applicationDidBecomeActive:(UIApplication *)application
Use the following methods to catch application exit notifications:
- (void)applicationWillTerminate:(UIApplication *)application
Use this method to catch application interrupt notification:
- (void)applicationWillResignActive:(UIApplication *)application
Use this method to catch application resume notification:
- (void)applicationDidBecomeActive:(UIApplication *)application
POSTGRESQL: Removing POSTGRESQL
The following manual uninstallation guide was grabbed from 2 separate sites. One is for removing 8.3, and the other for removing 8.4.
In Mac OSX: (Assuming Default Locations)
Via uninstaller:
1) In the installation directory, there will be a uninstall-postgresql.app file will be there, executing (double clicking) that will uninstall the postgresql installation.
Manual Uninstallation:
1) Stop the server
sudo /sbin/SystemStarter stop postgresql-8.3
sudo launchctl unload /Library/LaunchDaemons/com.edb.launchd.postgresql-8.4.plist
2) Remove menu shortcuts
sudo rm -rf /Applications/PostgreSQL/8.3
sudo rm -rf /Applications/PostgreSQL/8.4
3) Remove the ini file
sudo rm -rf /etc/postgres-reg.ini
sudo rm -f /etc/postgres-reg.ini
4) Removing startup items
sudo rm -rf /Library/StartupItems/postgresql-8.3
sudo rm -f /Library/LaunchDaemons/com.edb.launchd.postgresql-8.4.plist
5) Remove the data and installed files
sudo rm -rf /Library/PostgreSQL/8.3
sudo rm -rf /Library/PostgreSQL/8.4
6) Delete the user postgres
sudo dscl . delete /Users/postgres
In Mac OSX: (Assuming Default Locations)
Via uninstaller:
1) In the installation directory, there will be a uninstall-postgresql.app file will be there, executing (double clicking) that will uninstall the postgresql installation.
Manual Uninstallation:
1) Stop the server
sudo /sbin/SystemStarter stop postgresql-8.3
sudo launchctl unload /Library/LaunchDaemons/com.edb.launchd.postgresql-8.4.plist
2) Remove menu shortcuts
sudo rm -rf /Applications/PostgreSQL/8.3
sudo rm -rf /Applications/PostgreSQL/8.4
3) Remove the ini file
sudo rm -rf /etc/postgres-reg.ini
sudo rm -f /etc/postgres-reg.ini
4) Removing startup items
sudo rm -rf /Library/StartupItems/postgresql-8.3
sudo rm -f /Library/LaunchDaemons/com.edb.launchd.postgresql-8.4.plist
5) Remove the data and installed files
sudo rm -rf /Library/PostgreSQL/8.3
sudo rm -rf /Library/PostgreSQL/8.4
6) Delete the user postgres
sudo dscl . delete /Users/postgres
SYMBIAN: NewLC vs. NewL
It all has to do with the way you implement NewLC and NewL, but the STANDARD difference between NewLC and NewL is whether or not you have to CleanupStack->pop the object created.
Let's first start with the typical implementation of NewL and NewLC
static CObject* newL();
CObject* CObject::NewL() {
----CObject* self = NewLC();
----CleanupStack::Pop(self);
----return self;
}
static CObject* newLC();
CObject* CObject::NewLC() {
----CObject* self = new (ELeave)CObject();
----CleanupStack::PushL(self);
----self->Construct();
----return self;
}
As such, you would instantiate a CObject by using either of the following:
CObject* obj = CObject::NewL();
or
CObject* obj = CObject::NewLC();
// do something with obj that may require cleanup ie. cptrArray->AppendL(obj);
CleanupStack::Pop(obj);
If you do not pop the object, the stack will be messed up and you'll have a very difficult time figuring out why that is.
Let's first start with the typical implementation of NewL and NewLC
static CObject* newL();
CObject* CObject::NewL() {
----CObject* self = NewLC();
----CleanupStack::Pop(self);
----return self;
}
static CObject* newLC();
CObject* CObject::NewLC() {
----CObject* self = new (ELeave)CObject();
----CleanupStack::PushL(self);
----self->Construct();
----return self;
}
As such, you would instantiate a CObject by using either of the following:
CObject* obj = CObject::NewL();
or
CObject* obj = CObject::NewLC();
// do something with obj that may require cleanup ie. cptrArray->AppendL(obj);
CleanupStack::Pop(obj);
If you do not pop the object, the stack will be messed up and you'll have a very difficult time figuring out why that is.
C++: CONST CAST
Spent about 20 minutes trying to figure out why this wasn't compiling.
void CImageLoader::LoadImageL(const TDesC& filename) {
----TDesC* tmp = &filename; // COMPILER ERROR
}
It's because filename is CONST. So we'll have to 'unconst' it for this line to work:
TDesC* tmp = &(const_cast(filename));
void CImageLoader::LoadImageL(const TDesC& filename) {
----TDesC* tmp = &filename; // COMPILER ERROR
}
It's because filename is CONST. So we'll have to 'unconst' it for this line to work:
TDesC* tmp = &(const_cast
OPENGL ES: Basics
Here's how I usually set up my quads:
Coordinates
D C
A B
Vertices
A B
D C
Here's are the coordinates:
vertices = {-1, 1, 1, 1, 1, 1, 1, -1, 1, -1, 1, 1};
coords = {TEX(0, 0), TEX(255, 0), TEX(255, 255), TEX(0, 255)}; // assumes 256x256 texture image
normal = {0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1};
triangles = {1, 0, 3, 1, 3, 2};
Where TEX(u,v) is defined as (GLbyte)( (u) - 128 ) , (GLbyte)( (v) - 128 )
Draw code
glMatrixMode(GL_MODELVIEW);
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_BYTE, 0, vertices);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_BYTE, 0, coordinates);
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_BYTE, 0, normals);
glBindTexture(GL_TEXTURE_2D, textureID);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glDrawElements(GL_TRIANGLES, 2 * 3, GL_UNSIGNED_BYTE, triangles);
Coordinates
D C
A B
Vertices
A B
D C
Here's are the coordinates:
vertices = {-1, 1, 1, 1, 1, 1, 1, -1, 1, -1, 1, 1};
coords = {TEX(0, 0), TEX(255, 0), TEX(255, 255), TEX(0, 255)}; // assumes 256x256 texture image
normal = {0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1};
triangles = {1, 0, 3, 1, 3, 2};
Where TEX(u,v) is defined as (GLbyte)( (u) - 128 ) , (GLbyte)( (v) - 128 )
Draw code
glMatrixMode(GL_MODELVIEW);
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_BYTE, 0, vertices);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(2, GL_BYTE, 0, coordinates);
glEnableClientState(GL_NORMAL_ARRAY);
glNormalPointer(GL_BYTE, 0, normals);
glBindTexture(GL_TEXTURE_2D, textureID);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glDrawElements(GL_TRIANGLES, 2 * 3, GL_UNSIGNED_BYTE, triangles);
OS X: Splitting & Joining large files
Took me a VERY long time to figure this out, but...
Problem: Files over 4GB cannot be dragged onto your external HDD if the external HDD is using FAT32 file-system.
Solution: Split the file up using terminal into chunks smaller than 4GB and transfer as usual. You can use terminal to join the file up again at a later time.
To split the file up into 1GB chunks:
split -b 1024m filename.file PREFIX_
To join the file from the separated chunks:
cat sub1 sub2 sub3 sub4 > output.file
I read somewhere the older macs cannot handle splits larger than 2047mb. This is not true on my mac because I just made chunks that are 3gb FTW.
Problem: Files over 4GB cannot be dragged onto your external HDD if the external HDD is using FAT32 file-system.
Solution: Split the file up using terminal into chunks smaller than 4GB and transfer as usual. You can use terminal to join the file up again at a later time.
To split the file up into 1GB chunks:
split -b 1024m filename.file PREFIX_
To join the file from the separated chunks:
cat sub1 sub2 sub3 sub4 > output.file
I read somewhere the older macs cannot handle splits larger than 2047mb. This is not true on my mac because I just made chunks that are 3gb FTW.
MYSQL: Installing MySQL 4.1.22 on OS X 10.5
1. to remove MySQL 5.0, see previous post.
2. download the MySQL 4.1.22 installer from MySQL website.
3. install mysql-standard-4.1.22...i686.pkg
4. install mysqlStartupItem.pkg
5. set up MySQL config. In command prompt type:
sudo pico /etc/my.cnf
6. paste the following 4 lines into pico:
[mysqld]
default-character-set=utf8
[client]
default-character-set=utf8
7. exit pico & save file (ctrl+x, Yes for save)
8. now we can start the MySQL server using sudo:
sudo /Library/StartupItems/MySQLCOM/MySQLCOM start
9. open up command prompt, and enter mysql by typing:
/usr/local/mysql/bin/mysql -u root
EDIT: Getting it to work with OSX's installation of PHP...
Only follow the following instructions if you are having problems with the @mysql_connect method in PHP.
1. create a info.php file that calls the phpinfo(); method
----- NOTE: my version of PHP is 5.2.8
----- scroll down to the mysql section, and look for the value for key: MYSQL_SOCKET
----- MYSQL_SOCKET = /var/mysql/mysql.sock
----- goto /var/mysql and make sure mysql.sock... if the directory is missing or file is missing, you have the same problem I did. Your mysql.sock is probably inside /private/tmp...
2. in command prompt, type the following:
sudo mkdir /var/mysql
sudo chown _mysql /var/mysql
3. (OPTIONAL) in command prompt, type the following:
cp /private/tmp/mysql.sock /var/mysql/mysql.sock
4. edit the my.cnf file again, this time make sure its whole contents are the following 6 lines:
[client]
default-character-set=utf8
socket = /var/mysql/mysql.sock
[mysqld]
default-character-set=utf8
socket = /var/mysql/mysql.sock
5. restart the apache service through System Preferences > Sharing > Web Sharing
6. restart the MySQL service by typing the following 2 lines (one at a time) into command prompt:
sudo /Library/StartupItems/MySQLCOM/MySQLCOM stop
sudo /Library/StartupItems/MySQLCOM/MySQLCOM start
At this point the mysql_connect() php method should work as expected...
2. download the MySQL 4.1.22 installer from MySQL website.
3. install mysql-standard-4.1.22...i686.pkg
4. install mysqlStartupItem.pkg
5. set up MySQL config. In command prompt type:
sudo pico /etc/my.cnf
6. paste the following 4 lines into pico:
[mysqld]
default-character-set=utf8
[client]
default-character-set=utf8
7. exit pico & save file (ctrl+x, Yes for save)
8. now we can start the MySQL server using sudo:
sudo /Library/StartupItems/MySQLCOM/MySQLCOM start
9. open up command prompt, and enter mysql by typing:
/usr/local/mysql/bin/mysql -u root
EDIT: Getting it to work with OSX's installation of PHP...
Only follow the following instructions if you are having problems with the @mysql_connect method in PHP.
1. create a info.php file that calls the phpinfo(); method
----- NOTE: my version of PHP is 5.2.8
----- scroll down to the mysql section, and look for the value for key: MYSQL_SOCKET
----- MYSQL_SOCKET = /var/mysql/mysql.sock
----- goto /var/mysql and make sure mysql.sock... if the directory is missing or file is missing, you have the same problem I did. Your mysql.sock is probably inside /private/tmp...
2. in command prompt, type the following:
sudo mkdir /var/mysql
sudo chown _mysql /var/mysql
3. (OPTIONAL) in command prompt, type the following:
cp /private/tmp/mysql.sock /var/mysql/mysql.sock
4. edit the my.cnf file again, this time make sure its whole contents are the following 6 lines:
[client]
default-character-set=utf8
socket = /var/mysql/mysql.sock
[mysqld]
default-character-set=utf8
socket = /var/mysql/mysql.sock
5. restart the apache service through System Preferences > Sharing > Web Sharing
6. restart the MySQL service by typing the following 2 lines (one at a time) into command prompt:
sudo /Library/StartupItems/MySQLCOM/MySQLCOM stop
sudo /Library/StartupItems/MySQLCOM/MySQLCOM start
At this point the mysql_connect() php method should work as expected...
MYSQL: Removing MYSQL from a mac
Do the following in the terminal:
1. sudo rm /usr/local/mysql
2. sudo rm -rf /usr/local/mysql*
3. sudo rm -rf /Library/StartupItems/MySQLCOM
4. sudo rm -rf /Library/PerformancePanes/My*
5. (Edit /etc/hostconfig) sudo vi /etc/hostconfig (Remove line MYSQLCOM=-YES)
6. sudo rm -rf /Library/Reciepts/mysql*
7. sudo rm -rf /Library/Reciepts/MySQL*
1. sudo rm /usr/local/mysql
2. sudo rm -rf /usr/local/mysql*
3. sudo rm -rf /Library/StartupItems/MySQLCOM
4. sudo rm -rf /Library/PerformancePanes/My*
5. (Edit /etc/hostconfig) sudo vi /etc/hostconfig (Remove line MYSQLCOM=-YES)
6. sudo rm -rf /Library/Reciepts/mysql*
7. sudo rm -rf /Library/Reciepts/MySQL*
SQL: MySQL + USERS + MAC
when installing mysql for the very first time, you will need to create a root password in order to enter the mysql database:
mysqladmin -u ROOT_USER_NAME -p ROOT_PASSWORD
sign into mysql using the following command:
mysql --user=ROOT_USER_NAME --password=ROOT_PASSWORD
once in, you want to first navigate to the mysql database:
use mysql;
you can now insert more users to your liking by using the following commands:
create user 'SUB_USER_NAME'@'LOCALHOST';
set that person's password by using:
set password for 'SUB_USER_NAME'@'LOCALHOST' = PASSWORD('SUB_USER_PASSWORD');
now to give all permissions for the new user...
grant all privileges on *.* to 'SUB_USER_NAME'@'LOCALHOST' IDENTIFIED BY 'SUB_USER_PASSWORD' WITH GRANT OPTION;
or if you want to just grant certain privileges (in this case, SELECT):
grant SELECT on *.* to 'SUB_USER_NAME'@'LOCALHOST' IDENTIFIED BY 'SUB_USER_PASSWORD';
if you made a mistake, you can revoke the privileges by doing this:
revoke all privileges, grant option from 'SUB_USER_NAME'@'LOCALHOST';
NOTE:
1. *.* means you are granting permission to SELECT on all databases. Alternatively you could also specify a specific database, ie. mysql.user
2. GRANT OPTION is a special command that allows the SUB_USER to grant that same permission to other users
mysqladmin -u ROOT_USER_NAME -p ROOT_PASSWORD
sign into mysql using the following command:
mysql --user=ROOT_USER_NAME --password=ROOT_PASSWORD
once in, you want to first navigate to the mysql database:
use mysql;
you can now insert more users to your liking by using the following commands:
create user 'SUB_USER_NAME'@'LOCALHOST';
set that person's password by using:
set password for 'SUB_USER_NAME'@'LOCALHOST' = PASSWORD('SUB_USER_PASSWORD');
now to give all permissions for the new user...
grant all privileges on *.* to 'SUB_USER_NAME'@'LOCALHOST' IDENTIFIED BY 'SUB_USER_PASSWORD' WITH GRANT OPTION;
or if you want to just grant certain privileges (in this case, SELECT):
grant SELECT on *.* to 'SUB_USER_NAME'@'LOCALHOST' IDENTIFIED BY 'SUB_USER_PASSWORD';
if you made a mistake, you can revoke the privileges by doing this:
revoke all privileges, grant option from 'SUB_USER_NAME'@'LOCALHOST';
NOTE:
1. *.* means you are granting permission to SELECT on all databases. Alternatively you could also specify a specific database, ie. mysql.user
2. GRANT OPTION is a special command that allows the SUB_USER to grant that same permission to other users
IPHONE: NSXMLParser leak NSPlaceholderString
This is probably the most annoying leak I've every faced. With the NSXMLParser, I was getting these crazy 16 byte NSCFString leaks. The leaks traced back to [NSXMLParser parse], caused by NSPlaceholderString initWithBytes/initWithString.
I believe this is caused by the [parser:foundcharacters] method. Generally, the xml document being parsed has a bunch of \t and \n characters. It would appear these are the culprit. I got rid of the parse leaks by doing the following:
- (void)parser:(NSXMLParser*)parser foundCharacters:(NSString*)cdata {
NSString* tmp = [cdata stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
if(curr && tmp && [tmp length] > 0) {
curr.content:tmp;
}
}
Where curr is the variable saving the cdata 'found characters'.
I believe this is caused by the [parser:foundcharacters] method. Generally, the xml document being parsed has a bunch of \t and \n characters. It would appear these are the culprit. I got rid of the parse leaks by doing the following:
- (void)parser:(NSXMLParser*)parser foundCharacters:(NSString*)cdata {
NSString* tmp = [cdata stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
if(curr && tmp && [tmp length] > 0) {
curr.content:tmp;
}
}
Where curr is the variable saving the cdata 'found characters'.
Eclipse: Eclipse bin and .svn directories
Eclipse tends to like picking up .svn folders and throwing them into the /bin directory. For me, this defeats the purpose of doing a svn-ignore on the /bin directory. To prevent this from happening:
Configure Build Path > Source tab, under each SOURCE (or resource) directory, set the following excludes:
.svn
**/.svn/**
Clean & rebuild
XP: Map local directory as a drive
type in command prompt:
subst:
example:
subst e: c:\mpowerplayer\hdd
you should now see a e:\ volume in windows explorer.
subst
example:
subst e: c:\mpowerplayer\hdd
you should now see a e:\ volume in windows explorer.
UNIX: Find command
Common uses for the FIND command.
1. find all hidden .svn folders and delete them
find /path/to/search -name '.svn' -type d -exec rm -rf '{}' \;
2. find all hidden .svn folders and print them
find /path/to/search -name '.svn' -type d -print
1. find all hidden .svn folders and delete them
find /path/to/search -name '.svn' -type d -exec rm -rf '{}' \;
2. find all hidden .svn folders and print them
find /path/to/search -name '.svn' -type d -print
SVN: Subversion Server + MAC
This tutorial assumes that you have already installed the SVN binaries, and modified your PATH to the svn/bin.
Step 1: Creating a local repo
svnadmin create /path/to/repo
Step 2: Change the default configurations, svnserve.conf
[general]
anon-access = none
auth-access = write
authz-db = authz
password-db = passwd
realm = Subversion Server
Step 3: Edit the authz file
[groups]
admin = alex, bob, cathy
engineers = donny, emily
producers = frank
visitors = greg
[/]
* =
@admin = rw
@engineers = rw
@producers = rw
@visitors = r
Step 4: Edit the passwd file
[users]
alex = pw1
bob = pw2
cathy = pw3 (... and so forth)
Step 5: Chmod the entire repo directory
cd /path/to
find repo -exec chmod 777 '{}' \;
Step 6: Start the svn server
svnserve -d -r /path/to/repo
Step 7: Do a sample checkout
svn co svn://localhost /download/path --username bob --password pw2
Hopefully it works :) Oh yea, and to restart the server, you can use the command killall svnserve
Step 1: Creating a local repo
svnadmin create /path/to/repo
Step 2: Change the default configurations, svnserve.conf
[general]
anon-access = none
auth-access = write
authz-db = authz
password-db = passwd
realm = Subversion Server
Step 3: Edit the authz file
[groups]
admin = alex, bob, cathy
engineers = donny, emily
producers = frank
visitors = greg
[/]
* =
@admin = rw
@engineers = rw
@producers = rw
@visitors = r
Step 4: Edit the passwd file
[users]
alex = pw1
bob = pw2
cathy = pw3 (... and so forth)
Step 5: Chmod the entire repo directory
cd /path/to
find repo -exec chmod 777 '{}' \;
Step 6: Start the svn server
svnserve -d -r /path/to/repo
Step 7: Do a sample checkout
svn co svn://localhost /download/path --username bob --password pw2
Hopefully it works :) Oh yea, and to restart the server, you can use the command killall svnserve
MySQL on OS X
Download MySQL at: http://dev.mysql.com/downloads/ (More Specific) & install the DMG
1. Open up Terminal
2. Add /usr/local/mysql/bin to PATH
- cd ~
- emacs .profile
- export PATH="$PATH:/usr/local/mysql/bin"
3. Restart Terminal
4. Create new user for login
- mysqladmin -u USERNAME -p -password PASSWORD
5. Log in to MySQL with new user created
- mysql --user=USERNAME --password=PASSWORD
You should be in MySQL now
1. Open up Terminal
2. Add /usr/local/mysql/bin to PATH
- cd ~
- emacs .profile
- export PATH="$PATH:/usr/local/mysql/bin"
3. Restart Terminal
4. Create new user for login
- mysqladmin -u USERNAME -p -password PASSWORD
5. Log in to MySQL with new user created
- mysql --user=USERNAME --password=PASSWORD
You should be in MySQL now
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