zcat find from a range of folders?

[robertrobert905]

Hi, the folders in my directory are :

01 02 03 .... 26 27 and I want to do a search between folders 23 and 24 so this is my command

$ zcat 2[3,4]/*/ktraw_somecode*.gz |raw-extract-messages -t

but I have no idea what to do it I am trying to look at files from 12 to 26, i tried

$ zcat [12,26]/*/ktraw_somecode*.gz |raw-extract-messages -t
but I got nothing

[Irithori]

Try

{12..26}

[robertrobert905]

thanks it worked!!!

[robertrobert905]

another problem, if i want to know from 02 to 24 i typed {02..24}, but for the first 8 folders (02 to 09), I get the message

zcat: 9/*/ktraw_somecode*.gz: No such file or directory

why is the 0 getting dropped off?

[Irithori]

yw.

Just a note:
The numbering with leading zeros is ..unfortunate.
a) If you would have >99 folders, you would need to add zeros to existing directories.
b) If you want to count e.g. from 1 to 14, then you would need to use some printf construct similar to

a=1; printf "%02d" $a

So I would suggest to rename the 01--09 folders, if possible

[robertrobert905]

sorry i'm extremely new to linux so I do not follow. I do not have permission to change the names of the folders, since it's on a company database, the names are after days of the month, so from 01 to 30 usually.
So all I have permission to do is some simple cmd commands for information gathering, so I don't know how to incorporate your code into

zcat {02..26}/*/ktraw_somecode*.gz |raw-extract-messages -t

[Irithori]

Ah ok.
For days, it is unlikely that they exceed 99

What I meant is this:
If the number of these directorys would increase (26..50..99),
and finally go over 100, then you would need to adjust all already existing
directorys to: 001, 002,.., 010, etc for consistency.

But for days it is ok, although you now need a temporary variable and a loop instead of just some bash-isms.
Which is less elegant and less performant, but at least more portable.

Something like:

for a in {2..26}; do; DAY=printf "%02d" $a; zcat ${DAY}/*/ktraw_somecode*.gz |raw-extract-messages -t ;done

Additionally, you would need to check for the existence of the directorys (not all months have 31 days, and february is a bit tricky)

[robertrobert905]

Hi

Thanks so much ! I have another question, what if I want to go up a level in folders, say search from 04/11 to 05/26

I tried to zcat {04/11..05/26}/*/ktraw_somecode*.gz |raw-extract-messages -t apa
but it didn't work

[Irithori]

The {} represents a number range. Not dates.

While a oneliner might still be possible for this particular problem, I have the impression, that you need a more general and re-useable approach.

I would suggest you develop a solution with a script language of your choice, like perl or python.