Linux Bash Arithmetic Expressions Question: Download Linux Bash Arithmetic Expressions PDF

Which command removes a directory from directory stack?
a) dirs
b) popd
c) pushd
d) rm

b) popd

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Which command puts a script to sleep untill a signal is recieved? a) sleep b) suspend c) disown d) break	Which option of the kill command sends the given signal name to the specified process? a) -l b) -n c) -s d) -a