UNIX for Dummies Questions & Answers

-rw-r--r--   1 root     root     23859712 Mar 14 14:59 apache_live_2007_02_28_1.tar
-rw-r--r--   1 root     root     22019584 Mar 14 14:59 apache_live_2007_03_01_1.tar
-rw-r--r--   1 root     root     17999872 Mar 14 14:59 apache_live_2007_03_02_1.tar
-rw-r--r--   1 root     root     15144448 Mar 14 14:59

tar -xvf *tar | grep roaming.htm live_access_log > results.log

for file in *tar
do
    tar -xf $file && grep roaming.htm live_access_log > results.log
done

for file in *tar
do
    tar -xf $file && grep roaming.htm live_access_log > results.log
done

./tom.sh

for zipped_folder in *tgz
do
  current_tar = 'gunzip $zipped_folder'
  tar -xf $current_tar && grep "GET roaming98.htm?98&htm" live_access_log > results.log
done

gunzip *tgz
for file in *tar
do
    tar -xf $file && grep roaming.htm live_access_log > results.log
done

# Make sure there are files to unzip
if [ ls -l *"$extension" | wc -l > 0 ] ; then
  echo "\nUnzipping files, please wait..."
  gunzip *"$extension"
else
  echo "\nThere are no files to unzip in this directory!\n\n"
  exit 0
fi

What is the zip file extension? (tgz, zip, etc...)
tgz
./results.sh: test: ] missing
wc: cannot open ]

There are no files to unzip in this directory!