1. There should be a space between awk and -F
2. There should be no space between $ and 12
3. Since the field can be 3 or 4 characters I would not use substr , but use a pattern match:
4. Use curly braces instead of parentheses in most places
5. If you use 20100525 * it means read file named "20100525" and subsequently read any file in the directory including file "20100525"for the second time if it exists. Do you mean 20100525* (any file that begins with 20100525)?
After applying these changes you end up with something like this:
... hi all
unexpected results..
i extract the file info is very extense.... the strings exits in the file but have 3 or 4 characters
example
1268
368
try the easy example
Code:
awk -F, '$12~/68$/ {print}' 20100525*
the result is root Prompt >
...
Well, can you cut/paste the portion of your file that you expect to be captured by the awk script ?
The awk one-liner works well with my test files.
Code:
$
$
$ # how many files have names starting with "20100525" ?
$ ls -1 20100525*
20100525_myfile1.txt
20100525_myfile2.txt
$
$
$ # show the contents of both these files
$ cat 20100525_myfile1.txt
1,2,3,4,5,6,7,8,9,10,11,1267,13,14
1,2,3,4,5,6,7,8,9,10,11,1268,13,14
1,2,3,4,5,6,7,8,9,10,11,1269,13,14
$
$ cat 20100525_myfile2.txt
1,2,3,4,5,6,7,8,9,10,11,367,13,14
1,2,3,4,5,6,7,8,9,10,11,368,13,14
1,2,3,4,5,6,7,8,9,10,11,369,13,14
$
$ # now run the awk one-liner on these files
$ awk -F, '$12~/68$/ {print}' 20100525*
1,2,3,4,5,6,7,8,9,10,11,1268,13,14
1,2,3,4,5,6,7,8,9,10,11,368,13,14
$
$ # the result is as expected
$
Just a thought - maybe you have white space at the end of the 12th field, after "68" and before the 12th comma ?
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06-02-2010
awk searching
