users of a particular dir

narsing · #1 (**permalink**) 02-07-2006

Hi all,

i want to know who all are using a given particular dir.

for example:

Hello is a directory, i want to find all the users who are currently accessing the hello directory.

vino · #2 (**permalink**) 02-07-2006

You never mentioned which OS. This is for a /proc based system.

A very roundabout manner. Use readlink on all pids, then extract the user based on the pids from the ps listing.

Assumes a exact match between the directory to detect and the result of readlink.

Code:

[/tmp]$ cat detect.ksh
#! /bin/ksh

DIR=/dir/to/detect

cd /proc

for file in `ls -1`
do
        if [ -d "$file" ] ; then
        cd "$file"
        FIND=$(readlink -f cwd)
                if [[ "$FIND" == "$DIR" ]] ; then
                        PS_ALL="$PS_ALL $file"
                fi ;
        cd ..
        fi ;
done

echo "$PS_ALL"

# From the ps listing, get the user id from the pid

for pid in "$PS_ALL"
do
         ps -o user -p "$pid"
done

[/tmp]$

Vino

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