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What character would you use if you wanted to run two commands, one right after the
other, on a single command line?
;
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What other two characters allow more than one command to be run on a single
command line?
& and | (the pipe character)
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How can you continue a command onto the next line?
type \ immediately before hitting Enter
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What does the
dirs command do?
prints the current directory stack
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If you wanted to go to the root directory, but wanted to get back to where you were easily,
what would you enter at the command line?
pushd /
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If you used the command above, what would you type at the command line to get back to the
previous directory?
popd
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What is special about a global variable?
you can use it in any subshell of the shell in which it was created.
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What are the limitations of a local variable?
you can only use it in the shell in which it was created
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What would you type at the command line to create the local variable
foo and assign it the value "FOO"?
foo=FOO
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What would you type at the command line to create the global variable
bar and assign it the value "BAR"?
export bar=BAR