tools/compare-symbols.sh - pub/scm/libs/ell/ell - Git at Google

 #!/bin/bash

 diff -u <(grep -P '^\tl_' ell/ell.sym | tr -d '\t;' | sort) \
 	<(ctags -x --c-kinds=fv --file-scope=no ell/*[ch] | awk '/LIB_EXPORT/{ print $1 }' | sort)
	#!/bin/bash

	diff -u <(grep -P '^\tl_' ell/ell.sym \| tr -d '\t;' \| sort) \
	<(ctags -x --c-kinds=fv --file-scope=no ell/*[ch] \| awk '/LIB_EXPORT/{ print $1 }' \| sort)