WebDec 16, 2016 · So, in general, the - means "the previous directory". That's why cd - by itself will move you back to wherever you were. The main difference is that cd - is specific to the cd builtin. If you try to echo - it will just print a -. The ~- is part of the tilde expansion functionality and behaves similarly to a variable. WebOct 29, 2015 · From System Preferences. Select Keyboard. Select the Shortcuts tab. In the Left Pane select App Shortcuts. Click the Plus Button. From the *All Applications** Drop-down, select Finder. As long as you have the desired folder in the Recent Folders menu, type in the name of the folder EXACTLY as it is named in the Menu Title box.
Why is `cd` called before `cat` in this script? - Stack Overflow
WebMar 25, 2006 · This is set when the shell initializes and whenever the directory changes. And in fact "cd -" DOES change to the value of OLDPWD *that was set by the shell when it initialized*. It just happens that initially PWD and OLDPWD are set to the same thing, because there has been no "cd" yet. } I tried setting OLDPWD, but "% cd -" would still … WebApr 14, 2024 · Linux脚本(shell)详解「建议收藏」概述脚本:本质是一个文件,文件里面存放的是特定格式的指令,系统可以使用脚本解析器翻译或解析指令并执行(它不需要编译)shell既是一个用C语言编写的应用程序,又是一种脚本语言(应用程序解析脚本语言)Shell提供了一个界面,用户通过这个界面访问操作 ... emerging technology company in india
Bash Tutorial => $OLDPWD
WebSep 20, 2016 · 2. added the label on Sep 21, 2016. added this to the 0.2.1 milestone on Sep 21, 2016. added a commit to dasJ/autoenv that referenced this issue on Oct 13, … WebProbably since the old shells didn't display the name of the current directory in the prompt, it was helpful to see the name of the directory when you typed cd -.For example when you type cd /usr/local you know that you are in /usr/loal, but when you type cd - you don't always remember from which directory you came from. So it saves you from typing cd -; pwd. WebNov 23, 2024 · If some root commands are 'unknown' then we need to use the terminal in the second superuser state. 2. To access the second superuser state we input: su - (note the hyphen) on a terminal with root password. The 'ls' command will not list directories and root will be in the /root directory by default (not home) . do you tithe before or after taxes