Question

I am trying to use the find command with -regextype but it could not able to work properly.

I am trying to find all c and h files send them to pipe and grep the name, func_foo inside those files. What am I missing?

$ find ./ -regextype sed -regex ".*\[c|h]" | xargs grep -n --color func_foo

Also in a similar aspect I tried the following command but it gives me an error like paths must precede expression:

$ find  ./  -type  f  "*.c"  |  xargs  grep  -n  --color  func_foo

Answer 1

Why not just do:

find ./ -name "*.[c|h]" | xargs grep -n --color func_foo

and

find ./ -type f -name "*.c" | xargs grep -n --color func_foo

---

Regarding the valid paramters to find‘s option -regextype this comes verbatim from man find:

-regextype type

Changes the regular expression syntax understood by -regex and -iregex tests which occur later on
the command line. Currently-implemented types are emacs (this is the default),
posix-awk, posix-basic, posix-egrep and posix-extended

There is no type sed.