The PATH variable

PATH variable is colon delimited list of directories that UNIX uses to locate a command for execution.

To see the contents of the PATH variable we can echo the same

echo $PATH

When we run a command say ls -lrt, UNIX would check the paths provided in the PATH variable one by one and locate the command and execute the same.
In this case ls is present in the /bin directory.

This can be found using the which command:

which ls
/bin/ls

Oracle SQL and UNIX Gems

I will be posting some of Oracle SQL and UNIX "gems" that would be useful as a quick reference/revisions of the basics of SQL and UNIX in the next few posts.

Jungle book: Jungle Jungle Baat chali hai

The song that won the hearts of every kid and adults alike in those days.. is back in a newer version. Bringing back childhood.. and nostalgia. The kids have done  splendid job in recreating the magic.
The movie releases on 8th April in India

grep for 3rd Jan 16

Grep is a command that is used in pattern matching in UNIX. Some of the commonly used variants of grep sre below. We will discuss in detail in the next posts.

grep -i
grep -w
grep -v
grep -n
grep -c

Grep grep grep

Will write all about grep UNIX in the next posts. Want to make this exhaustive and informative.

Happy New Year!

Wish all a very Happy new year 2016! Hope to write as many productive posts as possible from the start of the year!

Reccuring Dreams

During my childhood days, there used to a be character called "Kosh" in my dreams. It was strange how this got materialised in my mind during dreams (I never heard of this name in reality). Kosh used to scare the wits out of me whenever it came in my dreams. It used to periodically come in my dreams, appearing exactly the same way, (I don't quite remember now, the memory has become hazy). Mostly it used to hide below our cot, and I would accidentally trip down from the cot only to find it face to face.. and I would wake up to reality.
I wish to form a proper story with this character as the antagonist and try writing a horror story on the lines of my favourite RR Stein's Goose Bumps.