- Users are on the system are listed in an alphabetical order -
cut /etc/passwrd -d":" -f1 | sort
- User has shell access -
cat /etc/passwd | cut -d":" -f4,5,6,7 | grep "^0"
or count -cat /etc/passwd | cut -d":" -f4 | grep "^0" | wc -l
- Export the Users' list to a file -
cut /etc/passwd -d ":" -f1 > system_users.txt
- Count the number of Users -
cat ./system_users.txt | sort | wc –l
- Compare -
cat ./system_users.txt - cut /etc/passwd -d ":"
-f1 > system_users002.txt
&&
cat system_users002.txt | sort | wc -l
- Diff -
diff ./system_users.txt ./system_users002.txt
- how many words begin with the letter a from the main user dictionary -
egrep '^a.*$' /usr/share/dict/words | wc -l
- tee to both view and write files and directories in /etc -
ls -d /etc/a* | tee ./etc_report_a.txt
- Kernel Info -
lsb_release -a
oruname -a
orhostnamectl
orcat /proc/os-release
Last active
July 11, 2023 03:38
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