On Tue, Jul 29, 2008 at 12:28, Anupam Jain <[EMAIL PROTECTED]> wrote:
> On Tue, Jul 29, 2008 at 12:11 PM, आशीष शुक्ल Ashish Shukla
> <[EMAIL PROTECTED]> wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > In <[EMAIL PROTECTED]>, Anupam
> Jain wrote:
> >>Hi all,
> >>
> >>Does anyone know of a way to get the maximum directory nesting,
> >>starting from the specified base, using standard Linux commands only
> >>(no php/perl/python etc.)?
> >>
> >>e.g. if the directory structure is as follows -
> >>d1
> >>->d2
> >>->->d3
> >>->->->d4
> >>->d5
> >>->->d6
> >>
> >>I need a shell script which will give me the answer "4" (i.e. depth of
> >>the deepest directory - d4).
> >
> > [EMAIL PROTECTED] ~ % find . -type d -printf '%d\n' |sort -n |tail -1
>
> Thanks for the quick replies Gora and Ashish!
>
> Actually even though I said bash, I am running this on busybox which
> does not support -printf for the find command. But I drew enough
> inspiration from your solution to come up with -
>
> find -type d | awk -F'/' '{print NF-1 "\n"}' | sort -n | tail -1
This wont well with absolute directory names.
for e.g. if you use
find /home/username -type d | awk -F'/' '{print NF-1 "\n"}' | sort -n | tail
-1
then it will add 2 (corresponding to /home/username) to the max dpeth. This
is because the paths returned from the find command are of the sort
/home/username/dird1 (depth as per awk expression 3. Actual depth relative
to base path 1)
/home/username/dir1/dird2 (depth as per awk expression 4 Actual depth
relative to base path 2)
You should use something like following if you dont have printf
find /home/user -type d | sed 's/^\/home\/user//g' | awk -F'/' '{print NF-1
"\n"}' | sort -n | tail -1
essentially remove out the base search path from the find result strings.
> Which works just as well :)
>
> -- Anupam
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--
Puneet
http://sahyog.blogspot.com/
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