Notes

zad1.
more -5 /etc/passwd
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
saslauth:x:499:76:Saslauthd user:/var/empty/saslauth:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
student:x:500:500::/home/student:/bin/bash
dbus:x:81:81:System message bus:/:/sbin/nologin
rtkit:x:498:496:RealtimeKit:/proc:/sbin/nologin
pulse:x:497:495:PulseAudio System Daemon:/var/run/pulse:/sbin/nologin
avahi-autoipd:x:170:170:Avahi IPv4LL Stack:/var/lib/avahi-autoipd:/sbin/nologin
haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
gdm:x:42:42::/var/lib/gdm:/sbin/nologin
vboxadd:x:496:1::/var/run/vboxadd:/bin/false

zad 2.
cat tekst1.txt > tekst3.txt
cat >> tekst3.txt
cat tekst2.txt >> tekst3.txt
zad.3
[student@centos ~]$ head -qn 5 *
head: błąd czytania `Dokumenty': Jest katalogiem
head: błąd czytania `Muzyka': Jest katalogiem
head: błąd czytania `Obrazy': Jest katalogiem
head: błąd czytania `Pobrane': Jest katalogiem
head: błąd czytania `Publiczny': Jest katalogiem
head: błąd czytania `Pulpit': Jest katalogiem
head: błąd czytania `Szablony': Jest katalogiem
cat tekst2.txt >> tekst3.txt
head: błąd czytania `Wideo': Jest katalogiem
zad.4
[student@centos ~]$ head -n 5 /etc/passwd | tail -n 3
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
zad. 5
[student@centos ~]$ tail -n 7 /etc/passwd | head -n 3
dbus:x:81:81:System message bus:/:/sbin/nologin
rtkit:x:498:496:RealtimeKit:/proc:/sbin/nologin
pulse:x:497:495:PulseAudio System Daemon:/var/run/pulse:/sbin/nologin
zad.6
[student@centos ~]$ cat /etc/passwd | tr "n" " "
root:x:0:0:root:/root:/bi /bash
bi :x:1:1:bi :/bi :/sbi / ologi
daemo :x:2:2:daemo :/sbi :/sbi / ologi
adm:x:3:4:adm:/var/adm:/sbi / ologi
lp:x:4:7:lp:/var/spool/lpd:/sbi / ologi
sy c:x:5:0:sy c:/sbi :/bi /sy c
shutdow :x:6:0:shutdow :/sbi :/sbi /shutdow
halt:x:7:0:halt:/sbi :/sbi /halt
mail:x:8:12:mail:/var/spool/mail:/sbi / ologi
uucp:x:10:14:uucp:/var/spool/uucp:/sbi / ologi
operator:x:11:0:operator:/root:/sbi / ologi
games:x:12:100:games:/usr/games:/sbi / ologi
gopher:x:13:30:gopher:/var/gopher:/sbi / ologi
ftp:x:14:50:FTP User:/var/ftp:/sbi / ologi
obody:x:99:99:Nobody:/:/sbi / ologi
vcsa:x:69:69:virtual co sole memory ow er:/dev:/sbi / ologi
saslauth:x:499:76:Saslauthd user:/var/empty/saslauth:/sbi / ologi
postfix:x:89:89::/var/spool/postfix:/sbi / ologi
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbi / ologi
stude t:x:500:500::/home/stude t:/bi /bash
dbus:x:81:81:System message bus:/:/sbi / ologi
rtkit:x:498:496:RealtimeKit:/proc:/sbi / ologi
pulse:x:497:495:PulseAudio System Daemo :/var/ru /pulse:/sbi / ologi
avahi-autoipd:x:170:170:Avahi IPv4LL Stack:/var/lib/avahi-autoipd:/sbi / ologi
haldaemo :x:68:68:HAL daemo :/:/sbi / ologi
gdm:x:42:42::/var/lib/gdm:/sbi / ologi
vboxadd:x:496:1::/var/ru /vboxadd:/bi /false
zad.7
cat plik.txt | tr " t" "n"
zad.8
[student@centos ~]$ find /etc -type f 2> errors | wc -l
778
zad.9
[student@centos ~]$ find /etc/ | head -3 | wc | tr '''n' | tail -1
tr: brakujący argument po `n'
Przy zamianie muszą być podane dwa zbiory
Spróbuj `tr --help' dla uzyskania informacji.
find: `/etc/pki/CA/private': Brak dostępu
find: `/etc/pki/rsyslog': Brak dostępu
find: `/etc/cups/ssl': Brak dostępu
zad.10
[student@centos ~]$ ls | tr [:lower:] [:upper:]
DOKUMENTY
ERRORS
MUZYKA
OBRAZY
POBRANE
PUBLICZNY
PULPIT
SZABLONY
TEKST3.TXT
WIDEO
[student@centos ~]$ ls | tr [:lower:]ąęćłóśżź [:upper:]ĄĘĆŁÓŚŻŹ
DOKUMENTY
ERRORS
MUZYKA
OBRAZY
POBRANE
PUBLICZNY
PULPIT
SZABLONY
TEKST3.TXT
WIDEO

zad 11.
[student@centos ~]$ ls -l | awk '{print $1,$5,$9}'
razem
drwxr-xr-x. 4096
-rw-rw-r--. 489
drwxr-xr-x. 4096
drwxr-xr-x. 4096
drwxr-xr-x. 4096
drwxr-xr-x. 4096
drwxr-xr-x. 4096
drwxr-xr-x. 4096
-rw-rw-r--. 48
drwxr-xr-x. 4096

zad12.
[student@centos ~]$ ls -l | sort -k5,5
razem 40
-rw-rw-r--. 1 student student 48 01-11 22:39 tekst3.txt
-rw-rw-r--. 1 student student 489 01-11 23:16 errors
drwxr-xr-x. 2 student student 4096 2015-09-27 Dokumenty
drwxr-xr-x. 2 student student 4096 2015-09-27 Muzyka
drwxr-xr-x. 2 student student 4096 2015-09-27 Obrazy
drwxr-xr-x. 2 student student 4096 2015-09-27 Pobrane
drwxr-xr-x. 2 student student 4096 2015-09-27 Publiczny
drwxr-xr-x. 2 student student 4096 2015-09-27 Pulpit
drwxr-xr-x. 2 student student 4096 2015-09-27 Szablony
drwxr-xr-x. 2 student student 4096 2015-09-27 Wideo

zad.13
[student@centos ~]$ cat /etc/passwd | sort -n -t ':' -k3,3
root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
gdm:x:42:42::/var/lib/gdm:/sbin/nologin
haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
avahi-autoipd:x:170:170:Avahi IPv4LL Stack:/var/lib/avahi-autoipd:/sbin/nologin
vboxadd:x:496:1::/var/run/vboxadd:/bin/false
pulse:x:497:495:PulseAudio System Daemon:/var/run/pulse:/sbin/nologin
rtkit:x:498:496:RealtimeKit:/proc:/sbin/nologin
saslauth:x:499:76:Saslauthd user:/var/empty/saslauth:/sbin/nologin
student:x:500:500::/home/student:/bin/bash

zad.14
[student@centos ~]$ sort -t : -k4 -r /etc/passwd | sort -t : -k3
root:x:0:0:root:/root:/bin/bash
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
bin:x:1:1:bin:/bin:/sbin/nologin
games:x:12:100:games:/usr/games:/sbin/nologin
gopher:x:13:30:gopher:/var/gopher:/sbin/nologin
ftp:x:14:50:FTP User:/var/ftp:/sbin/nologin
avahi-autoipd:x:170:170:Avahi IPv4LL Stack:/var/lib/avahi-autoipd:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
gdm:x:42:42::/var/lib/gdm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
vboxadd:x:496:1::/var/run/vboxadd:/bin/false
pulse:x:497:495:PulseAudio System Daemon:/var/run/pulse:/sbin/nologin
rtkit:x:498:496:RealtimeKit:/proc:/sbin/nologin
saslauth:x:499:76:Saslauthd user:/var/empty/saslauth:/sbin/nologin
student:x:500:500::/home/student:/bin/bash
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
haldaemon:x:68:68:HAL daemon:/:/sbin/nologin
vcsa:x:69:69:virtual console memory owner:/dev:/sbin/nologin
halt:x:7:0:halt:/sbin:/sbin/halt
sshd:x:74:74:Privilege-separated SSH:/var/empty/sshd:/sbin/nologin
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
dbus:x:81:81:System message bus:/:/sbin/nologin
postfix:x:89:89::/var/spool/postfix:/sbin/nologin
nobody:x:99:99:Nobody:/:/sbin/nologin
zad.15
[student@centos ~]$ find $HOME -not -type d | wc -l
796
zad.16
find -printf "%mn" | sort | uniq -c
zad.17
[student@centos ~]$ find -printf "%mn" | sort | uniq -c
1 700n755n700n644n700n700n775n700n700n644n600n700n600n600n664n644n600n664n644n644n600n600n644n644n664n644n644n644n700n600n664n700n600n600n600n600n700n700n600n644n700n600n755n644n644n644n600n600n600n600n755n755n775n664n644n644n600n600n644n777n644n664n775n775n777n664n664n644n700n700n644n640n755n755n700n644n600n600n755n664n664n664n755n755n664n664n755n755n600n755n700n700n700n700n600n700n700n700n600n600n700n700n600n600n700n600n700n600n600n700n700n600n600n700n600n700n700n700n600n600n600n700n600n700n600n700n700n600n600n700n600n700n600n700n600n700n600n700n600n600n700n600n700n700n600n700n600n600n640n600n755n644n700n700n700n755n664n664n664n644n644n644n664n664n664n664n664n664n664n644n644n700n600n600n600n600n600n600n600n600n600n600n600n700n700n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n600n700n600n775n664n755n600n755n640n755n755n755n755n755n600n644n600n700n644n644n644n644n644n777n640n600n700n755n700n600n700n644n700n700n700n644n644n755n664n755n600n664n

zad18.
zad.19
[student@centos ~]$ cat /etc/passwd | cut -d: -f1,7 | grep -v '/bin/bash' | cut -d: -f1
bin
daemon
adm
lp
sync
shutdown
halt
mail
uucp
operator
games
gopher
ftp
nobody
vcsa
saslauth
postfix
sshd
dbus
rtkit
pulse
avahi-autoipd
haldaemon
gdm
vboxadd
zad.20
zad. 21
[student@centos ~]$ find ~ -maxdepth 1 -type f -exec cat {} ; | grep ^#include < | cut -f2 -d < | cut -f1 -d > | sort | uniq
bash: błąd składni przy nieoczekiwanym znaczniku `|'
[student@centos ~]$ History | tr –s „ „ | cut –f 3 –d „ „ | sort | uniq –c
tr: nadmiarowy argument `„'
Spróbuj `tr --help' dla uzyskania informacji.
cut: musisz podać listę bajtów, znaków albo pól
Spróbuj `cut --help' dla uzyskania informacji.
uniq: –c: Nie ma takiego pliku ani katalogu
bash: History: nie znaleziono polecenia
zad.22
zad.23