UNIX for Dummies Questions & Answers

Hi everybody,
I'm new to linux world and I need your help!!

I'm using vi to create a .sh script that process files moving them from a directory to another and unzipping a file.
I need to catch errors while moving or unzipping files.

For move command, I do:

mv -f $fromdir/${file_dir}$extdati $todir
rcmv=$?
if ((rcmv!=0))
then
RC=2

How can I catch unzip error like for mv? Is there something like rcmv?
I do:

unzip $prefzip$mercato.$extdati -d $todir

Thanks
Laetitia

Any competently written Unix command will set its return code $? to zero for success, non-zero for error. The magic is not in "rcmv" but in "$?"

The idiomatic way to write that is to simply use "if mv". The if conditional examines the result code $? from the command it invokes, and takes the then branch if it's zero, otherwise the else branch (if present).

Code:

if mv -f "$fromdir/${file_dir}$extdati" "$todir"; then
  RC=2
fi
if ! unzip "$prefzip$mercato.$extdati" -d "$todir"; then
  echo error
fi

Sorry, I'm blond!!

Thanks for make me feel stupid, is the only way to learn!
I'll improve my linux-knowhow...

Bye
Laetitia