Re: grep

[Nathan E Norman <finn@midco.net>]

On Fri, 26 Dec 1997, George Bonser wrote:

: 
: I don't know about your system but on mine they are all hard links. These
: look like regular files in a listing as opposed to symbolic likns which
: show as links in a long directory listing.

I'll bet you're using bo ... and I'll bet the other system is a hamm
system (I have a few of each)

: In other words, if you delete egrep and fgrep, you will not see any change
: in the amount of disk space used. You use ln /bin/grep /bin/egrep to put
: the link back (instead of ln -s).
: 
: 
: On Fri, 26 Dec 1997 desbiensd@cedep.net wrote:
: 
: > 	I have grep version 2.1-3. In looking in the bin directory, I have found out:
: > 
: > /home/dodo# ls -l /bin/*grep
: > -rwxr-xr-x   1 root     root        67760 déc 16 11:21 /bin/egrep
: > -rwxr-xr-x   1 root     root        67760 déc 16 11:21 /bin/fgrep
: > -rwxr-xr-x   1 root     root        67760 déc 16 11:21 /bin/grep
: > /home/dodo# diff /bin/grep /bin/egrep
: > /home/dodo# diff /bin/grep /bin/fgrep
: > /home/dodo# 

If you look at the output, you'll see that these are indeed seperate
files; if they were hard links the number before the owner field would
reflect that.

kepler:~ # ls -l /bin/*grep
-rwxr-xr-x   1 root     root        67760 Dec 16 10:21 /bin/egrep*
-rwxr-xr-x   1 root     root        67760 Dec 16 10:21 /bin/fgrep*
-rwxr-xr-x   1 root     root        67760 Dec 16 10:21 /bin/grep*

kepler:~ # ls -i /bin/*grep
   6208 /bin/egrep*     6210 /bin/fgrep*     6178 /bin/grep*

The inodes are different.

Hmm, I just looked at a bo system and the greps are in /usr/bin instead
...

$ ls -l /usr/bin/*grep
-rwxr-xr-x   3 root     wheel       60552 Mar 24  1997 /usr/bin/egrep
-rwxr-xr-x   3 root     wheel       60552 Mar 24  1997 /usr/bin/fgrep
-rwxr-xr-x   3 root     wheel       60552 Mar 24  1997 /usr/bin/grep

$ ls -i /usr/bin/*grep
  67620 /usr/bin/egrep     67620 /usr/bin/grep      67620 /usr/bin/fgrep

Notice the inode numbers are the same here ...

[ sigs, etc. snipped ]

--
Nathan Norman
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