Modify creation date of a file on Mac OS

touch -mt YYYYMMDDhhmm

DigitalColor Meter

Ha mac os-en kell egy keppont szinet megallapitani, akkor DigitalColor Meter.

sips

Ha mac os-en egy keppel kell aprobb dolgokat csinalni arra jo a sips. Peldaul ha van egy png file-unk amirol a sips -g all picture.png megmondja, hogy a typeIdentifier valojaban public.jpeg es png-t akarunk csinalni belole, akkor egyszeruen:
sips -s format png picture.png --out newpicture.png

Hidden file-ok mutatasa OS X dialog box-okban

Command+Shift+pont (innen)

Ha a Finder nem mutatja a kulso meghajtokat

Finder > Preferences.. > Devices / External disks

Open Finder windows from Spotlight with Command+R

forras

Mac OS Quick Look-nal a "rontgenezes" be/ki kapcsolasa

be:

defaults write com.apple.Finder QLEnableXRayFolders 1

ki:

defaults write com.apple.Finder QLEnableXRayFolders 0

innen

Mac OS Enable native NTFS read/write support

Itt van az eredeti, de kommentek kozott vannak ketkedok

1. In Terminal, type diskutil info /Volumes/volume_name, where volume_name is the name of the NTFS volume. From the output, copy the Volume UUID value to the clipboard.
2. Back up /etc/fstab if you have it; it shouldn't be there in a default install.
3. Type sudo nano /etc/fstab.
4. In the editor, type UUID=, then paste the UUID number you copied from the clipboard. Type a Space, then type none ntfs rw. The final line should look like this: UUID=123-456-789 none ntfs rw, where 123-456-789 is the UUID you copied in the first step.
5. Repeat the above steps for any other NTFS drives/partitions you have.
6. Save the file and quit nano (Control-X, Y, Enter), then restart your system.

After rebooting, NTFS partitions should natively have read and write support. This works with both 32- and 64-bit kernels. Support is quite good and fast, and it even recognizes file attributes such as hidden files. My thanks go to Chrysaor, a MacRumors user who brought this to our attention.

Mac OS setfile utility

osxdaily.com:

Make a file or folder invisible in Mac OS X Finder

setfile -a V testfile.txt

Poof! Like magic, the file or folder is no longer visible via the Finder GUI, but don’t worry your files are still there and you can find them via the command line and will show with an ls command. If you want to make your files and folders visible again, use this command:

Make a file folder visible again in Mac OS X Finder

setfile -a v testfile.txt

+++++++++++++++++++++++++++++

apple.com:

/Developer/Tools/SetFile is a tool to set the file attributes on files in an HFS+ directory. It attempts to be similar to the setfile command in MPW. It can apply rules to more than one file with the options applying to all files listed.