Tag: operating systems

test $a -eq $b

test $a -equal $b

test $a = $b

sh -c test $a == $b

sleep 1 & echo $#

test sleep 1

sleep 1 & echo $?

sleep 1 & echo $!

$abc=xyz; echo $abc

abc=xyz ; echo $abc

export abc=xyz ; echo $abc

abc=xyz; export abc=xyz ; echo $abc

help cp

man cp

cp ?

f2 cp

mv new old

none

cp new old

rm new old

2> filename

1> filename

&> filename

2> /dev/null

cd -

cd ..

cd ~

cd /up

rm filename

less filename

touch filename

dl filename

stop

kill

delete

shupdown

ls -a

ls -all

find -all

find a