echo \\\/\\\/ echo \\/\\/ echo "''" echo '""' echo \'\' touch proba1 proba2 proba3 ls proba{1,2,3,4} ls -la mkdir probakt touch proba1 proba2 proba3 ls proba{1,2,3,4} cd probakt/ touch proba1 proba2 proba3 ls -la ls proba{1,2,3,4} ls proba{1,2,3,4} > kimenet ls proba{1,2,3,4} > kimenet 2>hiba cat kimenet cat hiba ls proba{1,2,3,4} > kimenet 2>&1 cat kimenet ls proba{1,2,3,4} > kimenet 2>/dev/null cat kimenet find / -name core find / -name core find / -name core 2>/dev/null cat > minta << KUTYA qwerety asdfd 12345 KUTYA cat minta vi proba cat proba ls -l chmod 755 proba ls -l cat proba ./proba vi ./proba ./proba cat proba vi ./proba cat proba ./proba cat proba echo alma{le,bor,reszelo} almak=$(echo alma{le,bor,reszelo}) echo $almak ls rm $(ls) ls which test which test [ ls -l /usr/bin/test ls -l $(which test) ls -l $(which [) test 2 -gt 1 echo test 2 -gt 1 echo $(test 2 -gt 1) echo $(test 1 -gt 2) man test if [ 2 -gt 1 ]; then echo nagyobb; else echo kisebb; fi if [ 2 -gt 1 ]; then echo nagyobb; else echo kisebb; fi if [ 2 -gt 3 ]; then echo nagyobb; else echo kisebb; fi if [ 2 -gt 3 ]; then echo igaz; else echo hamis; fi if [ 2 -ge 2 ]; then echo igaz; else echo hamis; fi if [ 2 -ge 2 -a 2 -ge 2 ]; then echo igaz; else echo hamis; fi if [ 2 -ge 2 -a 2 -ge 3 ]; then echo igaz; else echo hamis; fi ls touch file2 if [ 3 -ge 2 -a -w file2 ]; then echo igaz; else echo hamis; fi if [ 3 -ge 2 -a -x file2 ]; then echo igaz; else echo hamis; fi ls -l file2 for valtozo in 12 el vissza 23; do echo $valtozo; done ls touch 1234 file5 megfelel ls -l for valtozo in *; do echo $valtozo; done for valtozo in $(ls); do echo $valtozo; done ls for valtozo in seq 1 10; do echo $valtozo; done for valtozo $(seq 1 10); do echo $valtozo; done seq 1 10 for valtozo in $(seq 1 10); do echo $valtozo; done for valtozo in $(seq 1 10); do if [$valtozo%3 -eq 0]; then echo $valtozo; done for valtozo in $(seq 1 10); do if [$valtozo%3 -eq 0]; then echo $valtozo; fi; done for valtozo in $(seq 1 10); do if [$(($valtozo%3)) -eq 0]; then echo $valtozo; fi; done for valtozo in $(seq 1 10); do if [ $(($valtozo%3)) -eq 0]; then echo $valtozo; fi; done for valtozo in $(seq 1 10); do if [ $(($valtozo%3)) -eq 0 ]; then echo $valtozo; fi; done vi harommal chmod 755 harommal ./harommal r ./harommal cat harommal ls ls -l cp harommal vegre vi vegre ls -l ./vegre cat vegre mkdir 1 2 3 ls -l cp veg kt cp vegre kt vi kt ./kt seq 1 10 3 seq 1 3 10 for i in {1..10} ; do echo $i; done for i in {1..10..3} ; do echo $i; done ls ls -l cat harommal cat /etc/passwd | grep lencse vi harommal ./harommal vi./harommal vi ./harommal ./harommal vi ./harommal vi bdc ./bdc chmod 755 bdc ./bdc ls -l $(./bdc) ls -l sd* ls -l /dev/sd* ls vi bdc ./bdc ls vi bdc ./bdc vi bdc ./bdc bash cat /etc/profile id id -u cat /etc/passwd | grep lencse su do su sudo su cat /etc/profile ls /sbin sudo su cat /etc/profile echo $IFS echo "${IFS}alma" echo "korte${IFS}alma" echo "korte$IFSalma" echo $PATH echp $HOME echo $HOME echo $MAIL echo $MAILCHENCK echo $MAILCHECK echo $PS1 echo $PS2 cd tmp cd /tmp PS1=KUKA ls PS1="\u@\h:\w\$" echo $HISTSIZE echo $HISTFILE cd echo $PWD echo $OLDPWD cd - echo $UID $EUID sudo su