difference of " ls -l " and " ll " commands
 

Hi All,

As I was browsing the console, I type ls -l on one console and ll on the other. Noticed that they both generated the same values. Out of curiosity and for additional knowledge, may I ask what is the difference between the two and why both of them generated sthe ame output.

---
[hpsindia@ACSS-SDDBEASRV02 batch]$ ls -l
total 40
drwxr-xr-x 3 hpsindia hps 4096 Mar 21 21:03 bin
drwxr-xr-x 3 hpsindia hps 4096 Apr 13 08:44 common
drwxr-xr-x 3 hpsindia hps 4096 Mar 21 21:06 dtd
drwxr-xr-x 2 hpsindia hps 4096 Mar 21 21:06 old
drwxr-xr-x 38 hpsindia hps 4096 Mar 21 21:07 run
---
[hpsindia@ACSS-SDDBEASRV02 batch]$ ll
total 40
drwxr-xr-x 3 hpsindia hps 4096 Mar 21 21:03 bin
drwxr-xr-x 3 hpsindia hps 4096 Apr 13 08:44 common
drwxr-xr-x 3 hpsindia hps 4096 Mar 21 21:06 dtd
drwxr-xr-x 2 hpsindia hps 4096 Mar 21 21:06 old
drwxr-xr-x 38 hpsindia hps 4096 Mar 21 21:07 run
---

Thanks >_<

The ll command is an alias, the ls -l command is not.

Execute the following command to see which aliases are set: alias

You'll probably see an entry like this: alias ll='ls -l'

Aliases can be used for many things, not having to type the entire command is one reason to use them (unix/linux admins are lazy ;) )

Have a look here for more info: The alias Command

ll is nothing but the 'alias' for ls -l

---------- Post added 04-19-13 at 09:58 AM ----------

http://tldp.org/LDP/abs/html/aliases.html

I used to keep quick alias to 'change directory' like,
alias s='cd path/to/my/sandbox'

ll is not any command or command option, so simply invoke alias command and you will come to know what alias is ll.

All, thanks for the advise. Verified and it is indeed an alias. New Knowledge aquired. >___<