declare -xi total=0
declare -xi count
cat /tmp/orders | while read file;do
wc -l /dgorder/$file;
done | while read count file;do
total=$((total + count))
echo "Number of Orders: $(wc -l /tmp/orders | tr -s ' '|cut -d' ' -f2)"
echo "Total Documents: $total"
/tmp/orders is a file that has a filename, one per lineIt wasn't working. Here's my solution, with commentary
Each /dgorder/$file has a number of records in it and I'm trying to
count the total number of records in all the files.
You're just trying to be too clever. Here's an easier way, done by, "recall the line and add something." Programming by accretion. :-)
$ cat /tmp/fooIt shows how I start out writing all of my shell scripts: on the command line.
$ for i in $(< /tmp/foo); do echo /etc/$i; done # Want to ensure they exist? s/echo/ls/
$ wc -l $(for i in $(< /tmp/foo); do echo /etc/$i; done)
$ wc -l $(for i in $(< /tmp/foo); do echo /etc/$i; done) | perl -lane 'print if s/ total//'
$ total=$(wc -l $(for i in $(< /tmp/foo); do echo /etc/$i; done) | perl -lane 'print if s/ total//')
$ echo $total 174
At this point, I can use the bash built-in, fc, to put the code into a file, and save it as the core of a working script.
As an added bonus, he told me he debugged his, after he'd sent the note, but it was a factor of ten slower than mine.
Still, in most of my code, what's important is speed of development. I could probably, make it even faster, but only with more work. This really did only take the half a dozen steps shown above to develop.