51 characters only in the 1st Line of command line
 

When the cursor reaches the 51th column, it jumps to the 2nd line. But from the 2nd line on, the cursor reaches the end.
Maybe it's been caused by programming with "ncurse" these days. Based on my judgement, I tried command "tset" and "reset" to solve the problem. I didn't know what is type of term. Hence, I used them without any parameter:
$tset
$reset
However, the two command didn't work as I thought.
Anybody who has encountered the same or similar problem, please post how you solved it.

Regards!

I usually throw a \ in and hit enter when things get too long.
Example:
Blink@sanity ~ --> cat /proc/cpuinfo \
> | grep model
model : 2
model name : Intel(R) Xeon(TM) CPU 2.40GHz
model : 2
model name : Intel(R) Xeon(TM) CPU 2.40GHz

is the same as:

Blink@sanity ~ --> cat /proc/cpuinfo | grep model
model : 2
model name : Intel(R) Xeon(TM) CPU 2.40GHz
model : 2
model name : Intel(R) Xeon(TM) CPU 2.40GHz
Blink@sanity ~ -->

I think I didn't express it so clear.

What i meant is I can't type down to the end of the 1st line, but from the 2nd line on, i can type down to the end.

Sorry.