linux - 从管道输入中 grep 多个搜索模式并递增地报告单个计数

Question

有一些输出从具有模式“通过”、“失败”、“崩溃”的测试中涌现出来，我希望能够在屏幕上看到随着测试的计数进展而增加的输出

run_tests | <grep or some command that does counting>
PASSED 1 FAILED 0 CRASHED 0
.. after running 25 tests
PASSED 20 FAILED 5 CRASHED 0

Answer 1

awk 'BEGIN{passed = 0; failed = 0; crashed=0}
/PASSED/{passed++} /FAILED/{failed++} /CRASHED/{crashed++}  
{print "PASSED " passed " FAILED " failed " CRASHED " crashed}'