Shell Programming and Scripting

while read line
do
   echo "$ line">> file $ contador_fichero.txt
if [$ num_lines-eq $ lines];
  Then
      num_lines = 0
      temp = `cat $ $ 1` contador_fichero.txt
      echo $ temp | iconv-f-t utf-8 iso-8859-1 | text2wave-scale 5.0-o $ nom $ contador_fichero.wav
      =$(($ contador_fichero contador_fichero +1))
   else
     =$(($ num_lines num_lines +1))
   fi
  done <$ nom

The script as posted is gibberish. You have spaces where there shouldn't be any, and no spaces where there should be.

There is no keyword "Then" (it's "then"); you cannot start a command with "=".

Etc..

I suggest that you start from scratch with a loop containing a single instruction.

If that works, add the next instruction.

Continue until the script fails, then post the script (using cut and paste; do not retype it) and explain exactly how it fails (cut and paste any error messages into your post).