I am very obsessive about backing up my data. To preserve space on my MacBook Air’s drive, I store most of media files on a WD Passport external drive. Additionally I back that media up on a second (and oftentimes a third) desktop external drive. Sure, this is a little OCD but it’d be quite a shame to lose all of my files, should my first Passport drive fail me.
Not so long ago, a co-worker and friend of mine introduced me to the UNIX application,
screen. While I was really excited to learn of something so useful, I was also deeply saddened in realizing that it was right under my nose all this freaking time. In this short post, I’m going to show you how you can take advantage of this clever little utility.
OS X 10.7 (Lion) introduced a feature called the Character Picker. This allows you to press-and-hold a key on your keyboard, activating a little popup with the different character options associated with that key. This can be a useful feature for some, as it allows you to visually see all of those additional character options and not have to know how to otherwise activate each of them. I, however, found that it was more of a hinderance to my workflow. For example, when I am editing my code in VIM or Vintage Mode in Sublime Text, this feature prevents me from holding down the movement keys (h, j, k, l) to navigate. So I decided to disable it.
Secure Copy (SCP) is a means of securely transferring files between hosts on a network. It is based on the Secure Shell (SSH) protocol. The command line
scp program, which is provided in most SSH implementations, is the secure analog of the rcp command.
Sed is a UNIX stream editor that can be used to filter text files. This can be extremely useful if you have to run a Find and Replace on a string of text across a large file. I find this to be much more efficient than using a Find and Replace feature in a text editor. It is much faster (especially on very large files) and you can let it run in a separate Terminal tab without holding up your workflow.
As a developer, there may be times when you need to monitor what is happening on an Apache server as live HTTP requests are coming in from a web page. In a UNIX environment, you can actually accomplish this quite painlessly through the command line, using the
Tail is a command which outputs the last part of a file and the
grep utility is used for pattern matching.