echo |
echo \
>
<
ls # -l
echo#
ls ;; ls
; ls ; ls
cat <<<<< bar
cat << << bar
echo -nnnnnnnnnnnnnnnnnnnnn FOO
echo -nnnnnnnnnnnnnnnnnnnnno foo
echo -n -n -n -n bar
echo "$ $ $ $ $SHELL----------$LOL.......$123TEST"
echo $PWD; echo $OLDPWD; cd ../../../..; pwd; echo $PWD; echo $OLDPWD
export HELLO\\WORLD
export bO_nJq123o__1ju_je3134sui__a=a; echo $bO_nJq123o__1ju_je3134sui__a
export A==a; echo $A
export A=a=a=a=a=a; echo $A
echo TEST > foo > bar
echo bar > FILE1 >> FILE2 >> FILE3
echo >> FILE foo
echo >> FILE1 foo > FILE2
> FILE
< FILE cat
< FILE1 cat < FILE2
< FILE1 cat < FILE2 < FILE3
cat < NONEMPTY > FILE2
touch TEST; chmod 001 TEST
ec""ho bonjour
ech"o" bonjour
echo "\\\\"
echo '\\\\'
echo s'h'e'l'l
echo a'b'c"d"e'f'g"h"i'j'k"l"m'n'o"p'q'r"s't'u"v"w"x"y'z'
echo \$SHELL
echo foo "" bar ""
echo foo '' bar ''
echo a\ \ \ \ \ \ \ b
echo "a\\b"
echo "a\\ \ b c\" \'$SHELL\'"
echo $"SHELL"
echo $'SHELL'
"/bin/ls" "-l"
top | grep root
cat /dev/random | cat
ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls|ls
> FILE ; ls | rev | wc -c >> FILE ; cat FILE ; < INFILE cat