Shell Programming and Scripting

SOURCE_DIR="some directory path"
TARGET_DIR="Target Dir"
Datestamp=Date_format
find $SOURCE_DIR \( -name "*.log" -o -name "*.out" ) - exec ls -1 {} \;

-exec ls -1

ls | cat

DATESTAMP=`date +%Y-%m-%d`

find $SOURCE_DIR \( -name "*.log" -o -name "*.out" ) |
while read FILE
do
        BASE=`basename "$FILE"`
        echo "$BASE" >/tmp/$$
        IFS="." read BASE EXT < /tmp/$$
        echo mv "$FILE" "/path/to/$BASE.$DATESTAMP.$EXT"
done

rm -f /tmp/$$

# Get the date in YYYY-MM-DD.  See 'man date'
DATESTAMP=`date +%Y-%m-%d`

# Find all relevant files, and print them one per line into a pipe.
find $SOURCE_DIR \( -name "*.log" -o -name "*.out" ) |
# Read each filename from the pipe into the FILE variable one by one
while read FILE
do
        # Converts /path/from/file.ext into file.ext
        BASE=`basename "$FILE"`
        # write file.ext into a temp file, overwriting whatever's there already.
        # $$ is a special variable meaning "the shell's PID".
        # Each program running on the system gets its own unique number, or PID.
        echo "$BASE" >/tmp/$$
        # read the string "file.ext" into BASE and EXT, splitting on "."
        # so that BASE="file" and EXT="ext"
        IFS="." read BASE EXT < /tmp/$$
        # Move and rename /path/from/file.ext into /path/to/file.date.ext
        echo mv "$FILE" "/path/to/$BASE.$DATESTAMP.$EXT"
done
# Delete the temporary file.
rm -f /tmp/$$

BASE=${FILE##*/}

BASE=`basename "$FILE"`