UNIX for Dummies Questions & Answers

#!/bin/sh

echo "Enter the Num"
read $i
cd /aa/$i/abc

when i execute the above i am getting the error
where $i=205

another point is i have just place
#!/bin/sh
cd /aa/205/abc

when i execute this i am unable to change the directory...

but i am able to login by
/home/cvs cd /aa/205/abc
here i am able to change the directory..
/aa/205/abc


Any inof on this...

In reverse order:

When you change directories in a child process, when the child process exits, the parent proces (the one that called the script) is where it started. No change.

Code:

. myscript.sh

Notice the DOT spec before the script name. This is called sourcing.
It makes the process run in the parent, not a child. So, if the script changes directories it will "stick" in the parent process.
The first question

Code:

echo "enter something \c"
read i  # notice NO $ in front of i
echo "$i"    # now we need a $