Question

Which line of the following output is a symbolic link?

Line 1: -rw-r--r--    1 wbackman  staff    640 May 16  2013 docproj_submitting.diff.txt
Line 2: lrwxr-xr-x    1 wbackman  staff     21 Jan 29 07:54 perf -> /var/log/performance/
Line 3:  -rw-r--r--    1 wbackman  staff  29837 Dec  3 15:07 simple-web-request-ipv6.pcap
Line 4:   -rw-r--r--    1 wbackman  staff    102 Jul 30  2013 start-tftp.sh

Answer 1

here is the answer..

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A symbolic link is a file entry that references to another file.

Line 2: lrwxr-xr-x    1 wbackman  staff     21 Jan 29 07:54 perf -> /var/log/performance/

If there is a symbolic link then the prefix l is present i mean all symbolic directory has l permission at the begging of permissions flags.

You can clearly see in the above long listing of a file that the prefix l is present so it's a symbolic link. Other given file does not have this permission hence they are not the symbolic link.

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Kindly Check and Verify Thanks..!!!