Did you know you can access all the information store in a JPG/PNG/GIF file from the command line? Install the ImageMagick package and do this: identify -verbose image_file.jpg The output will be something llike this: Image: image_file.jpg Format: JPEG (Joint Photographic Experts Group JFIF format) Class: DirectClass Geometry: 640×480+0+0 Type: TrueColor Endianess: Undefined Colorspace: RGB … Read More »
If you find VMWare rather slow and would like to speed things a little bit, ad these lines to the .vmx file of your guest operating system: sched.mem.pshare.enable = “FALSE”prefvmx.useRecommendedLockedMemSize = “TRUE”prefvmx.minVmMemPct = “100”mainMem.partialLazySave = “FALSE”mainMem.partialLazyRestore = “FALSE”mainMem.useNamedFile = “FALSE”
You don’t need a fancy e-mail client with calendar capabilities to get a quick reminder. This is especially useful if you’re on a SSH prompt and don’t have a post-it neatby 🙂 echo “mail -s ‘remember the birthday party’ your_email@server.com < /dev/null” | at 15:19 This will send you an e-mail to the address you… Read More »
You want to apply two different commands on the same file or directory. You don’t have to type the path all over again. Use it like this:cat /home/user/Downloads/folder1/folder2/file.txtrm $_ In this case, rm $_ is the same as typing rm /home/user/Downloads/folder1/folder2/file.txt . This can sometimes save you a lot of time.