Shell Programming and Scripting

Hi,

In an If condition, how can I specify if the variable are less than 5 letters, echo “error”.

Something like this one:

echo –n “Your name please: “
read name
if [ $name –lt 5 #it must refer to 5 letters# ]; then
Echo “Your name must be at least 5 letters length”
exit
fi

Thanks a lot…

Quick and dirty: if [ `echo $name|wc -c` -lt 5 ]; then

it doesnt work at well.

This is the code:

#!/bin/bash
clear
echo -n "Give me name: "
read let
if [ `echo $let|wc -c` -lt 5 ]; then
echo "There are not 5 letters"
else
echo "Thanks, there are 5 or more."
fi


here is the output:

Give me name: qwer
Thanks, there are 5 or more.


I got it....

The problem is on the space name: " it count that byte too...

okas...


Thanks a lot.

Make it

if [ `echo $let|wc -c` -lt 6 ]; then


cheers
Gaurav

Try this.......

Just use # to get the length of a variable. It works in bash and ksh.

Code:

$ bash
$ x="abcd"
$ echo $x has ${#x} characters
abcd has 4 characters
$

Excellent, this one works.


Thanks a lot everyone....