Co delaji nasledujici prikazy?

1. cat /etc/passwd| cut -f 5 -d:| cut -f2 -d" "| sort | uniq -c | sort -rn | head

2. ps -axu |  awk '/root/ {print $2, $11}' | sort -k2 | sort -k2 -u| sort -n

3. for i in *
   do
     echo "$i ------------------------------"
     cat $i
   done

4. find /etc/ -name '*sh*' -exec sh -c "echo {} >> list" \;

5. find /etc/ -name '*sh' -print  > list

6. du -sk * | sort -rn

7. grep ^a /etc/passwd | cut -f6 -d: | xargs stat

8. grep ^a /etc/passwd | cut -f6 -d: | xargs -n 1 stat

9. cd &&  find . -mtime -10 -exec cp {} backup/{}.bak \;

11. tar czvf /var/backup/backup.`date +%a`.tgz /home/system /etc

10. for host in www smtp ftp proxy nfs
    do
      ssh -l transfer -i /home/transfer/.ssh/identity $host   \
      "/usr/local/bin/sudo tar -c -l -z -P -f - -v  /etc" >   \
      /var/backup/backup.tgz
    done

12. host -l -t a ms.mff.cuni.cz | cut -f1 -d " "| sort | uniq |
while read host; do ping -c1 $host; done  | egrep "statistics|round-trip"