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StackOverflow 文档
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unix 教程
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基本控制台命令
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pushdpopd(在堆栈上存储当前 dir 并转到 dest pop prev 目录并转到它)
$ pwd
/home/bob/somedir1/somedir2/somedir3
$ pushd /home/bob/otherdir1/otherdir2
/home/bob/otherdir1/otherdir2 /home/bob/somedir1/somedir2/somedir3
$ popd
/home/bob/somedir1/somedir2/somedir3
$ pushd /usr
/usr /home/bob/somedir1/somedir2/somedir3
$ pushd /var
/var /usr /home/bob/somedir1/somedir2/somedir3
$ popd
/usr /home/bob/somedir1/somedir2/somedir3
$ pwd
/usr
$ popd
/home/bob/somedir1/somedir2/somedir3
$ pwd
/home/bob/somedir1/somedir2/somedir3