Use awk instead of cut to cut out specific columns of a file | For separating out specific columns of a file, try using awk! The command to use is: $ awk ‘{print $9,$10}’ file.txt > file_cut.txt Where 9 or 10 indicates the ninth or tenth column of a text file. For an example, say you have the output of an ls -l: drwxr-xr-x 13 root root 4096 Jun
How to install host, nslookup and other BIND tools on Windows
How to install host, nslookup and other BIND tools on Windows | For a Linux admin using Windows, cygwin unfortunately does not provide host, nslookup, or other bind tools. I’ll show you how to download these BIND tools directly from ISC and have them work in your cygwin terminal! Note: this assumes you already have a working cygwin install. First, download the latest version of BIND for
Make your terminal snow
Make your terminal snow | Make your terminal snow with this cool python terminal app. The github page is: https://gist.github.com/1508912
Encode or Decode base64 from the Command Line
Encode or Decode base64 from the Command Line | If you have ever needed to quickly decode or encode base64, Linux has a command line utility called base64 that works great. I’ll show you how it works! To encode text to base64, use the following syntax: $ echo ‘scottlinux.com rocks’ | base64 c2NvdHRsaW51eC5jb20gcm9ja3MK To decode, use base64 -d. To decode base64, use a syntax
Perform DNS Lookups with the host command
Perform DNS Lookups with the host command | The dig command is commonly used to make DNS queries. However, a much overlooked command is the host command. Here are some quick tips for a useful tool to add to your bag of tricks or to impress your friends. The syntax is: $ host [domain.com] When run with no options, a simple quick summary
OS X Monitor Virtual Memory Usage from Command Line
OS X Monitor Virtual Memory Usage from Command Line | OS X has a simple command line tool to monitor virtual memory usage: vm_stat. I’ll show you how it works! Crack open a terminal and run vm_stat. You will see an output somewhat like below: $ vm_stat Mach Virtual Memory Statistics: (page size of 4096 bytes) Pages free: 54492. Pages active: 541989. Pages inactive: 155818.
OS X Lion Show Hidden Library Folder
OS X Lion Show Hidden Library Folder | To enable viewing the Library folder which is hidden in OS X Lion, crack open a terminal (Utilities > Terminal) and use this terminal command: chflags nohidden ~/Library Cool!
Quick Intro to zsh: auto complete
Quick Intro to zsh: auto complete | zsh or the z shell is an interactive shell that builds upon features of other shells such as bash, ksh, and tcsh. zsh is great for advanced script monkeys but also is an excellent simple bash replacement for the regular joe user. Here is a quick intro to the auto complete features of zsh! On
Clear or Flush Arp Cache in OS X
Clear or Flush Arp Cache in OS X | To clear or delete the arp cache in Mac OS X, crack open a terminal and issue the following command: $ sudo arp -a -d Done! Thanks Theo
Bash Tips – Return to Previous Location
Bash Tips – Return to Previous Location | Ok this is a quick one, but useful! To return to the previous working directory, simply type: cd – and hit enter. Cool!
