$ wc -wL fichero
       -L, --max-line-length
              print the maximum display width

       -w, --words
              print the word counts

$ grep -io '\btal\b' fichero | wc -l
       -i, --ignore-case
              Ignore case distinctions in both the PATTERN and the input files.
       -o, --only-matching
              Print only the matched parts of a matching line, with each such part on a separate output line.

       -l, --lines
              print the newline counts