$ \textbf{hg init mq-sandbox}
$ \textbf{cd mq-sandbox}
$ \textbf{echo 'line 1' > file1}
$ \textbf{echo 'another line 1' > file2}
$ \textbf{hg add file1 file2}
$ \textbf{hg commit -m'first change'}
$ \textbf{hg qinit}