Wargames-Bandit-Level8
Level 8
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
Solution
说是只出现一次的是password，可能会用到的命令里面有个uniq，直接看一下帮助：
bandit8@bandit:~$ uniq --help
Usage: uniq [OPTION]... [INPUT [OUTPUT]]
Filter adjacent matching lines from INPUT (or standard input),
writing to OUTPUT (or standard output).
With no options, matching lines are merged to the first occurrence.
Mandatory arguments to long options are mandatory for short options too.
-c, --count prefix lines by the number of occurrences
-d, --repeated only print duplicate lines, one for each group
-D print all duplicate lines
--all-repeated[=METHOD] like -D, but allow separating groups
with an empty line;
METHOD={none(default),prepend,separate}
-f, --skip-fields=N avoid comparing the first N fields
--group[=METHOD] show all items, separating groups with an empty line;
METHOD={separate(default),prepend,append,both}
-i, --ignore-case ignore differences in case when comparing
-s, --skip-chars=N avoid comparing the first N characters
-u, --unique only print unique lines
-z, --zero-terminated line delimiter is NUL, not newline
-w, --check-chars=N compare no more than N characters in lines
--help display this help and exit
--version output version information and exit
A field is a run of blanks (usually spaces and/or TABs), then non-blank
characters. Fields are skipped before chars.
Note: 'uniq' does not detect repeated lines unless they are adjacent.
You may want to sort the input first, or use 'sort -u' without 'uniq'.
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Full documentation <https://www.gnu.org/software/coreutils/uniq>
or available locally via: info '(coreutils) uniq invocation'
这里有一个-u是输出唯一的行，但是底下有个note说是必须要先排序，那么先sort在uniq即可：
bandit8@bandit:~$ strings data.txt | sort | uniq -u
EN632PlfYiZbn3PhVK3XOGSlNInNE00t
