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Count occurrences in awk

 
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Old 03-13-2012
Count occurrences in awk
Hello,
I have an output from GDB with many entries that looks like this
Code:
0x00007ffff7dece94	39	in dl-fini.c
0x00007ffff7dece97	39	in dl-fini.c
0x00007ffff7ab356c	50	in exit.c
0x00007ffff7aed9db in _IO_cleanup () at genops.c:1022
115	in dl-fini.c
0x00007ffff7decf7b in _dl_sort_fini (l=0x0, maps=0x7fffffffeab0, nmaps=4, 
    used=0x4 <Address 0x4 out of bounds>, ns=0) at dl-fini.c:115
0x00007ffff7ab3570	50	in exit.c
74	in exit.c

How can I count how many times "in exit.c", "in dl-fini.c" and "in genops.c" is in the file?
It shouldn't count "at+...", only "in+...".

The output has to be
Code:
3 in exit.c
2 dl-fini.c

 
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