Tag: unix
Installing Midnight Commander 4.7 on Mac OS X
2 Feb2010

Another short post just to remember the procedure for the next time I’ll be setting up a new mac. For those of my readers who do not know what Midnight Commander (aka mc) is, GNU Midnight Commander is a visual file manager, created under a heavy influence of Norton Commander file manager from dark DOS ages 🙂 For more information, you can visit their web site. Now, get to the installation topic itself.

To install mc on a Mac OS X machine, you need macports installed and then first thing you’ll need to do is to install some prerequisite libraries:

$ sudo port install libiconv slang2

Next thing, download the sources from their web site and unpack them. When the sources are ready, you can configure the build:

$ ./configure \
        --prefix=/opt/mc \
        --with-screen=slang \
        --enable-extcharset \
        --enable-charset \
        --with-libiconv-prefix=/opt/local \
        --with-slang-includes=/opt/local/include \

Then, normal GNU-style build and install procedure:

$ make
$ sudo make install

And the last thing would be to add /opt/mc/bin to your PATH environment variable.

Troubleshooting UNIX Systems with lsof
30 Mar2006

One of the main tasks of any administrator is to create stable environment for different sorts of businesses. Big part of this task is troubleshooting. There are many different tools in UNIX for system monitoring, but, at my mind, one of the most useful tools is lsof- one of the least-talked-about tools in a UNIX sysadmin’s toolkit. Lsof lists information about files opened by processes. But that’s really an understatement.

Most people forget that, in UNIX, (almost) everything is a file. The OS makes hardware available to applications by way of files in /dev. Kernel, system, memory, device etc. information in made available inside files in /proc. TCP/UDP sockets are sometimes represented internally as files. Even directories are really just files containing other filenames.

Lsof works by examining kernel data-structures and provides a variety of information related to files, pipes, sockets and more.

Read the rest of this entry