Count source code Lines shell script [00 original]

Today I wrote a shell script that counts the number of source lines in a directory, as follows:
#!/bin/bash
Find. -Name *. Java > Srcfilespathname
Count = $ (wc-l srcfilespathname) # Record the number of source files
echo "Number of source generation files = $count"

While Read PathName
Todo
Countandpath = $ (wc-l $pathName)
echo $countAndPath >> T1
Done < Srcfilespathname

linesum = 0 # Total Row count

While Read Countandpath
Todo
LineCount = ' echo ' $countAndPath | Awk-f ' ' {print '} ' # take the first field, which is the number of rows
Linesum = ' expr $lineCount + $lineSum '
Done < T1

echo "Total number of source lines = $lineSum"
RM Srcfilespathname
RM T1

Exit 0
Later, the master gave a simpler answer, a line of command is enough:-)

Find-name ' *.java '-type f-exec cat {};  | Wc-l
Oh, shell script is really profound ah.
:-)