cd
cd ..
cd .
cd /Users
cd //
cd '//'
cd //////
cd ./././
cd /
cd '/etc'
cd '/var'
cd "$PWD/prompt"
cd "doesntexist"
cd "doesntexist" 2>/dev/null
cd ../../..
cd ..
cd ..
cd ?
cd +
cd _
cd bark bark
cd '/'
cd $PWD/file_tests
cd $OLDPWD/builtins
echo
echo echo
eCho
eChO
eCHO
echo $
echo $ $
ECHO
echo rhobebou
echo stop barking
echo "bonjour"
echo bonjour
echo 'bonjour'
echo -n bonjour
echo -nn bonjour
echo -n -n -n bonjour
echo "-n" bonjour
echo -n"-n" bonjour
echo "-nnnn" bonjour
echo "-nnnn" -n bonjour
echo "-n -n -n"-n bonjour
echo "-n '-n'" bonjour
echo $USER
echo "$USER"
echo "'$USER'"
echo " '$USER' "
echo text"$USER"
echo text"'$USER'" ' $USER '
echo "text"   "$USER"    "$USER"
echo '              $USER          '
echo               text "$USER"            "$USER"text
echo ''''''''''$USER''''''''''
echo """"""""$USER""""""""
echo $USER'$USER'text oui oui     oui  oui $USER oui      $USER ''
echo $USER '' $USER $USER '' $USER '' $USER -n $USER
echo ' \' ' \'
echo '\" ' " \"\""
echo \\\" \\\" \\\" \\\"\\\"\\\" \\\'\\\'\\\'
echo "$USER""$USER""$USER"
echo text"$USER"test
echo '$USER' "$USER" "text \' text"
echo '$USER'
echo $USER " "
echo "$USER""Users/$USER/file""'$USER'"'$USER'
echo "$USER$USER$USER"
echo '$USER'"$USER"'$USER'
echo '"$USER"''$USER'"""$USER"
echo " $USER  "'$PWD'
echo " $USER  \$ "'$PWD'
echo $USER=4
echo $USER=thallard
echo $USER
echo $?
echo $PWD/file
echo "$PWD/file"
echo "text" "text$USER" ... "$USER"
echo $PWD
env | grep "_="
env | grep "_="
env | grep "SHLVL"
echo oui | cat -e
echo oui | echo non | echo something | grep oui
echo oui | echo non | echo something | grep non
echo oui | echo non | echo something | grep something
cd .. | echo "something"
cd .. | echo "something"
cd / | echo "something"
cd .. | pwd
ifconfig | grep ":"
ifconfig | grep nothing
whoami | grep $USER
whoami | grep $USER > tmp/file
whoami | cat -e | cat -e > tmp/file
cat Makefile | grep "FLAGS"
cat Makefile | cat -e | cat -e
cat Makefile | grep "FLAGS" | grep "FLAGS" | cat -e
export TEST=123 | cat -e | cat -e
unset TEST | cat -e
echo test | cat -e | cat -e | cat -e
whereis ls | cat -e | cat -e > test
echo test | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e | cat -e
ls -la | grep "."
whereis grep > tmp/file
whereis grep > tmp/file
ls -la > tmp/file
ls -la > tmp/file
unset
export TEST=100
unset doesntexist
unset PWD
unset PWD
unset OLDPWD
unset PATH
unset PATH
unset PATH
unset TES\\\\T
unset TES;T
unset TES.T
unset TES+T
unset TES=T
unset TES}T
unset TES{T
unset TES-T
unset -TEST
unset _TEST
unset TES_T
unset TEST_
unset TE*ST
unset TES#T
unset TES@T
unset TES!T
unset TES$?T
unset ============
unset +++++++
unset ________
unset export
unset echo
unset pwd
unset cd
unset unset
unset sudo
unset TES^T
unset TES!T
unset TES\~T
echo $PWD
echo $PWD|cat -e
echo $PWD hallo | cat -e
echo '$PWD hallo | cat -e'
echo "$PWD hallo | cat -e"
wc < Makefile -l | cat -e > outfile | echo hello | rev > outfile2
< test.txt < Makefile<README.md wc -l|cat -e | rev
< Makefile cat > out | < README.md cat -e
< README.md cat -e | <Makefile cat
< in1 cat -e | < in2 cat
< in1 cat -e > out1 | < in2 cat
env | rev | head -5 | cat -e | rev
< in1 <in2 <in3 < Makefile rev | head -5 | cat -e | rev > out > out2 > out3 >> out4
echo ok"hello"ok1"mfg" == echo ok'hello'ok1'mfg'
echo okhellook1"mfg" == echo okhellook1'mfg'
echo "o""k       "hellook1 == echo 'o''k       'hellook1
echo '"***hello***"'
echo "'***hello***'"
echo ok"'hello'"ok1"hello1"ok2
echo "text"   "$USER"    "$USER"
echo """"""""$USER""""""""
echo "-n -n -n"-n bonjour
echo "'$USER'"
echo "$PWD         "a
echo "         $PWD"

exit