OverTheWire - Bandit - Level 8 to Level 9

Description:

Level Goal

The password for the next level is stored in the file data.txt and is the only line of text that occurs only once

Commands you may need to solve this level

grep, sort, uniq, strings, base64, tr, tar, gzip, bzip2, xxd

Solution:

1. [Comment] Using SSH to connect the server
2. sp@simple-plan:~|=> ssh bandit8@bandit.labs.overthewire.org
   ...
   bandit8@bandit.labs.overthewire.org's password: cvX2JJa4CFALtqS87jk27qwqGhBM9plV
3. [Comment] Using ls command to list directory contents
4. bandit8@melinda:~$ ls
   data.txt
5. [Comment] Using sort command to sort lines of data.txt first
6. [Comment] Then, using uniq command with --count option to count number of duplicate lines
7. [Comment] At last, using grep command to search for the only one line
8. [Comment] Don't forget to pipe the commands together
9. bandit8@melinda:~$ sort data.txt | uniq --count | grep "1 "
         1 UsvVyFSfZZWbi6wgC7dAFyFuR6jQQUhR
10. [Comment] Using exit command to disconnect connection to server
11. bandit8@melinda:~$ exit
    logout
    Connection to bandit.labs.overthewire.org closed.
12. [Comment] It's done! Saving the password for next level.

Reference:

ssh	http://linuxcommand.org/man_pages/ssh1.html
ls	http://linuxcommand.org/man_pages/ls1.html
cat	http://linuxcommand.org/man_pages/cat1.html
exit	http://linuxcommand.org/man_pages/logout1.html
cd	http://linuxcommand.org/lc3_man_pages/cdh.html
find	http://linuxcommand.org/man_pages/find1.html
grep	http://linuxcommand.org/lc3_man_pages/grep1.html
sort	http://linuxcommand.org/lc3_man_pages/sort1.html
uniq	http://linuxcommand.org/man_pages/uniq1.html