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Functions

count how many times a string appears in a (source code) tree

Terminal - count how many times a string appears in a (source code) tree
$ grep -or string path/ | wc -l
2009-07-16 12:50:59
User: ioggstream
Functions: grep wc
9
count how many times a string appears in a (source code) tree

grep -o puts each occurrence in a separate line

Alternatives

There are 2 alternatives - vote for the best!

Terminal - Alternatives
grep -rc logged_in app/ | cut -d : -f 2 | awk '{sum+=$1} END {print sum}'
2009-07-15 14:16:44
User: terceiro
Functions: awk cut grep
-2

grep's -c outputs how may matches there are for a given file as "file:N", cut takes the N's and awk does the sum.

Know a better way?

If you can do better, submit your command here.

What others think

The "wc -l" is needless.

Why not use "grep -orc" instead?

Comment by flart 274 weeks and 5 days ago

because it doesn't work! (That might be worth submitting as a bug...)

echo foo foo foo foo |grep -oc foo

1

echo foo foo foo foo |grep -o foo|wc -l

4

Comment by eichin 274 weeks and 5 days ago

Great command!

Comment by lkjoel 192 weeks and 1 day ago

Your point of view

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