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The solution isn't straight forward.


#define CH(x) #x[0]
#define DECR(a,b,c,d) decr( CH(a), CH(b), CH(c), CH(d) )



The two macros cause the satement

DECR( k, e, y, \0 );

to be...

awk '{a[$1]+=$2;}END{for (i in a) print i, a[i];}' file

Guru.

Why not awk? It can be done in nearly any language, of course, but:

1) awk is especially good and efficient for this particular problem
2) everyone has an awk of some sort

Doing the same...

awk -v a=$start -v b=$end '$0 > a && $0 < b' timestamp.log

Input:
$ cat fil
1
4
6
8
10

Output:
$ awk '$0 > 2 && $0 <9' fil
4
6
8


Guru.

All the nawks that I know don't have the mktime built-in function. But Corona688's solution works without mktime (just omit mktime and the surrounding parentheses) since the date values are in "yyyy...

Can you not have the contents of variable in files ?

If then, you can use paste file1 file2

Your second version processes each line of input one by one, but your first does not !

Because of this line ..

d=`sed 's/[0-9|.]* - [-|a-zA-Z]* \[\([0-9]*\/[a-zA-Z]*\/[0-9:]* [0-9+]*\)\]...

Welcome to the forum.

You didn't mention about the log file format. If it contains only the IP ADDRESS,
probably you can do something like,

$ cat f5
54.215.211.198
50.215.211.198...