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Old 03-30-2009, 08:08 AM   #1
laki47
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List missing files - help writing a script


Hello!

In my log directory there are a lot of files:

log000001.txt
log000002.txt
...
log000123.txt
log000124.txt
log000130.txt
log000131.txt
...
log000600.txt

Notice that files between log000124.txt and log000130.txt are missing (5 files).

Now, I want to write a script that shows me the missing files (or just numbers...). It is very hard to check manually.

Thank you

Last edited by laki47; 03-30-2009 at 08:09 AM.
 
Old 03-30-2009, 09:10 AM   #2
eco
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Try somethin in the lines of:

reviewed (messy but works).
Code:
#!/bin/bash

total=`ls -t log0000*.txt|tail -n1|cut -d. -f1|cut -dg -f2`

for i in `seq -w 1 ${total}`; do
   [ ! -f log*${i}.txt ] && echo "Missing: ${i}"
done
done

I have no access to a shell right now so this is theoretical. I'll test it with a shell in a few minutes if it doesn't work.

Last edited by eco; 03-30-2009 at 09:16 AM.
 
Old 03-30-2009, 09:35 AM   #3
john test
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Are the upper and lower boundries always the same? (001 and 600)?
 
Old 03-30-2009, 09:55 AM   #4
laki47
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Quote:
Originally Posted by john test View Post
Are the upper and lower boundries always the same? (001 and 600)?
I'm afraid not...
 
Old 03-30-2009, 09:59 AM   #5
eco
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Have you had a chance to try my script? It's basic but it should do the job as a quick fix.
 
Old 03-30-2009, 10:04 AM   #6
laki47
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Quote:
Originally Posted by eco View Post
Have you had a chance to try my script? It's basic but it should do the job as a quick fix.
I will be able to try it later...

Thank you

...

It is working great!

Thanks!

Last edited by laki47; 03-30-2009 at 01:37 PM.
 
Old 03-30-2009, 01:11 PM   #7
john test
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What process triggers the writing of the log file?
Pmce you know what that process is then you can determine what causes it to either write or not write the Lov file.
Then you can make that process increment a counter no matter what the descision was and that will give you the end point.
you need an endpoint so you can deal with the case where the process failed to write a log file for the last N instances after the last log file was written. e.g. 601, 602 etc.
 
Old 03-30-2009, 01:58 PM   #8
schneidz
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this mite work
[untested]
Code:
for i in `seq 1 999999`
do
 zero-pad-2.x $i
done > list.num

ls -1 log*.txt | cut -b 4-9 > log.lst

grep -v -f list.num log.lst
# diff list.num log.lst
source to zero-pad-2.c:
Code:
#include "stdio.h"
#include "string.h"
 
 
char *strrev(char *s){
    char *p=s;
    char *q =s;
    char swap;
    if (*s)
    {
        q=strchr(q,'\0');
        while (--q > p)
        {
            swap = *q;
            *q = *p;
            *p = swap;
            ++p;
        }
    }
    return s;
}
 
 
main(int argc, char *argv[])
{
        char col1[255], col2[255];
        int c;
 
         while(strlen(argv[1]) < 2)
         {
          strcpy(argv[1], strrev(argv[1]));
          strcat(argv[1], "0");
          strcpy(argv[1], strrev(argv[1]));
         }
         printf("%s\n", argv[1]);
}

Last edited by schneidz; 03-30-2009 at 02:06 PM.
 
  


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