Jan Kończak

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|~~#~~|cat /etc/motd \\ cat /etc/SUSE-brand /etc/os-release|
|~~#~~|cat \\ foo \\ baz \\ # press //Ctrl+d// |
|~~#~~|cat /usr/share/doc/mpich/user.pdf \\ cat -v /usr/share/doc/mpich/user.pdf |
|~~#~~|paste /etc/os-release /etc/os-release|
|~~#~~|hexdump -C /usr/share/themes/Breeze/assets/line-h.png|
|~~#11~~|date > //file//|
|~~#~~|date >> //file//|
|~~#~~|cat /etc/motd /etc/shadow 2> //file//|
|~~#~~|find /var/spool/ 2> /dev/null |
|~~#~~|find /var/spool/ > //out// 2> //err// |
|~~#~~|find /var/spool/ &> //out_and_err// |
|~~#~~|echo 'print("hello " + <nowiki>__file__</nowiki>)' > //file// \\ python < //file// \\ # compare with   python //file// |
|~~#~~|hexdump -C << EOF \\ foo \\ baz \\ bar€and®foobar \\ EOF |
|~~#~~|bc \\ sqrt(2.0000) \\ quit \\ bc <<< 'sqrt(2.0000)' |
|~~#~~|bc <<< 'sqrt(2.0000)' > //file// |
|~~#~~|cat /etc/motd >&- \\ find /var/spool/ 2>&- |
|~~#~~|cp /etc/services . \\ hexdump <>services 1>&0 \\ # hexdump reads a chunk of data, outputs (in the middle of the file) the hex dump, \\ # and repeats this until it processes whole file. |
|~~#~~|cat /etc/motd /etc/shadow 3>&1 1>&2 2>&3 <nowiki>|</nowiki> rev |
|~~#25~~|echo '2+2*2' <nowiki>|</nowiki> bc|
|~~#~~|echo //'some text'// <nowiki>|</nowiki> xxd|
|~~#~~|ls <nowiki>|</nowiki> cat \\ ls <nowiki>|</nowiki> cat -n|
|~~#~~|ps -eF <nowiki>|</nowiki> fold|
|~~#~~|mkfifo //p// \\ fold < //p// \\ ps -eF > //p// |
|~~#~~|paste <(seq 15) <(seq 15 -1 1) <nowiki>|</nowiki> head -n3 \\ paste <(seq 15) <(seq 15 -1 1) <nowiki>|</nowiki> tail -n3 \\ paste <(seq 15) <(seq 15 -1 1) <nowiki>|</nowiki> head -n -3 \\ paste <(seq 15) <(seq 15 -1 1) <nowiki>|</nowiki> tail -n +4 \\ paste <(seq 15) <(seq 15 -1 1) <nowiki>|</nowiki> head -n9 <nowiki>|</nowiki> tail -n 4  |
|~~#~~|seq 25 > //file// \\ tail -f //file// \\ seq 26 30 >> //file// |
|~~#~~|seq 75 <nowiki>|</nowiki> grep 5 \\ seq 75 <nowiki>|</nowiki> grep '5$' \\ seq 75 <nowiki>|</nowiki> egrep '5$<nowiki>|</nowiki>0$' \\ seq 75 <nowiki>|</nowiki> grep -B3 '33' \\ seq 75 <nowiki>|</nowiki> grep -C2 '33' |
|~~#~~|grep 10 /etc/passwd /etc/group \\ grep -R ecdsa ~/.ssh |
|~~#~~|mount <nowiki>|</nowiki> cut -f 5 -d ' ' \\  cut -f 3 -d ' ' /etc/mtab |
|~~#~~|egrep '<nowiki>^</nowiki>[Ee]{2}' /usr/share/myspell/en_US.dic <nowiki>|</nowiki> cut -f1 -d/ |
|~~#37~~|cat random_data \\ sort random_data|
|~~#~~|sort -k3 random_data \\ sort -nk3 random_data |
|~~#~~|sort -k2,2 -k6,6 random_data |
|~~#~~|sort -k2,2 random_data \\  sort -sk2,2 random_data \\ # the latter preserves order of lines with identical sort key|
|~~#~~|sort -k2,2 -k3,3n random_data|
|~~#~~|man wc <nowiki>|</nowiki> cat \\ man wc <nowiki>|</nowiki> wc|
|~~#44~~|perl -e 'printf "%d\n", (int rand(6)+1)+(int rand(6)+1) for(1..100)' <nowiki>|</nowiki> uniq -cd \\ perl -e 'printf "%d\n", (int rand(6)+1)+(int rand(6)+1) for(1..10000)' <nowiki>|</nowiki> sort -n <nowiki>|</nowiki> uniq -c |
|~~#~~|echo -e '1 2 3\n4 5 6\n7 8 9' \\ echo -e '1 2 3\n4 5 6\n7 8 9'  <nowiki>|</nowiki> rev \\ echo -e '1 2 3\n4 5 6\n7 8 9'  <nowiki>|</nowiki> tac |
|~~#~~|ls -l <nowiki>|</nowiki> tr '0-9' '-' \\ ls -l <nowiki>|</nowiki> tr '[:lower:]' '[:upper:]' \\ # or     ls -l <nowiki>|</nowiki> tr 'a-z' 'A-Z' \\ ls -l <nowiki>|</nowiki> tr -s ' ' ' ' \\ ls -l <nowiki>|</nowiki> tr -d 'rwx'|
|~~#48~~|less /usr/share/doc/packages/apparmor-docs/techdoc.pdf \\ less -L /usr/share/doc/packages/apparmor-docs/techdoc.pdf \\ less /usr/share/doc/packages/automake/amhello-1.0.tar.gz \\ less /usr/include|
|~~#~~|tree <nowiki>|</nowiki> tee //file// \\ less //file//|

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~~META:
language = en
~~
Jan Kończak

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