pushd [-n] [+N | -N | DIR]
!subtitle:功能
将当前工作目录压入栈顶，然后将工作目录切换到 DIR。
如果不带 DIR 参数，则将当前工作目录与原先栈顶的目录交互。
!subtitle:类型
Bash 内置命令。
!subtitle:参数
-n - 仅将当前工作目录压入栈顶，不切换工作目录
+N - 旋转目录栈，使得从栈顶向下第的 N 个目录位于栈顶
-N - 旋转目录栈，使得从栈底向上第的 N 个目录位于栈顶
DIR - 目标目录
$ pwd # 查看当前目录
/home/user/primers
$ pushd /tmp # 将 /home/user/primers 入栈，切换到 /tmp
$ pwd # 查看当前目录
/tmp
$ pushd /usr/share # 将 /tmp 入栈，切换到 /usr/share
$ pwd # 查看当前目录
/usr/share
$ dirs # 查看当前工作目录和目录栈
/usr/share /tmp ~
波浪号（~）表示用户主目录
| 命令 | 说明 |
|---|---|
| cd | 切换工作目录 |
| pushd | 将当前工作目录压入栈顶，并切换工作目录 |
| popd | 将目录栈的栈顶移除，并切换工作目录 |
| dirs | 查看当前工作目录和目录栈 |
NAME
pushd - Add directories to stack.
SYNOPSIS
pushd [-n] [+N | -N | DIR]
DESCRIPTION
Add directories to stack.
Adds a directory to the top of the directory stack, or rotates
the stack, making the new top of the stack the current working
directory. With no arguments, exchanges the top two directories.
Options:
-n Suppresses the normal change of directory when adding
directories to the stack, so only the stack is manipulated.
Arguments:
+N Rotates the stack so that the Nth directory (counting
from the left of the list shown by `dirs', starting with
zero) is at the top.
-N Rotates the stack so that the Nth directory (counting
from the right of the list shown by `dirs', starting with
zero) is at the top.
dir Adds DIR to the directory stack at the top, making it the
new current working directory.
The `dirs' builtin displays the directory stack.
Exit Status:
Returns success unless an invalid argument is supplied or the directory
change fails.
SEE ALSO
bash(1)
IMPLEMENTATION
GNU bash, version 5.0.17(1)-release (x86_64-redhat-linux-gnu)
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>