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