Shell script to print/check directory permissions on Unix
Here is a small shell script which will print a directory permissions and other details... Basically I want to check whether a directory has the read write permissions for the user?
I am using here a simple commonsense that a read write permissions will make the octal permissions of it more than 600 for sure .. that's it.
d rwx rwx rwx
d rw- --- ---
420 000 000
6 0 0
rwx r-x r-x
7 5 5
So it should be always greater than 600 for a directory to have read write permissions always.
Basically I'm using stat tool to find the permissions of a dir
Ex : check stat for /opt/a
nc184120:/opt # stat /opt/a
File: `/opt/a'
Size: 48 Blocks: 0 IO Block: 4096 directory
Device: 802h/2050d Inode: 101912 Links: 2
Access: (0155/d--xr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2010-07-01 22:53:59.845347264 -0700
Modify: 2010-07-01 01:45:43.769709152 -0700
Change: 2010-07-01 01:46:14.790993200 -0700
So the above script doesn't have read or write permissions.
Shell script :
nc184120:/opt # cat per.sh
dir="/opt/a"
echo "Checking the permissions for $dir"
stat $dir
echo "##############################################"
if [ `stat -c "%a" $dir` -ge 600 ] ; then
echo "$dir has Read Write permissions."
else
echo "$dir has no read write permissions."
fi
dir="/opt/a"
echo "Checking the permissions for $dir"
stat $dir
echo "##############################################"
if [ `stat -c "%a" $dir` -ge 600 ] ; then
echo "$dir has Read Write permissions."
else
echo "$dir has no read write permissions."
fi
and the output looks like below ...
nc184120:/opt # ./per.sh
Checking the permissions for /opt/a
File: `/opt/a'
Size: 48 Blocks: 0 IO Block: 4096 directory
Device: 802h/2050d Inode: 101912 Links: 2
Access: (0155/d--xr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2010-07-01 22:53:59.845347264 -0700
Modify: 2010-07-01 01:45:43.769709152 -0700
Change: 2010-07-01 01:46:14.790993200 -0700
##############################################
/opt/a has no read write permissions.
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2 comments to "shell script to print/check directory permissions on Unix"
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Whoever writes Inappropriate/Vulgar comments to context, generally want to be anonymous …So I hope U r not the one like that?
For lazy logs, u can at least use Name/URL option which doesn’t even require any sign-in, The good thing is that it can accept your lovely nick name also and the URL is not mandatory too.
Thanks for your patience
~Krishna(I love "Transparency")
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Krishna says:
More about stat command you can refer this link ..
More abt stat
Krishna says:
The better solution to know the current dir permissions is this ..
ls -ld | cut -f1 -d" "