Welcome to LeviFREE's Blog

1. Quickly Return to the Previous Directory (cd -)#

This is perhaps the simplest yet most practical command. When you are frequently switching between a deep directory like /Users/levi/project/src/components/ and a system directory like /etc/nginx/, you don’t need to type the full path every time.

Simply type:

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cd -

The system will automatically take you back to “the directory you were in last.”

2. Command Too Long? Use Ctrl + A and Ctrl + E#

When you’ve typed a massive command in the terminal and realize you forgot to add sudo at the very beginning, or misspelled a word:

• Do NOT frantically spam the left arrow key.
• Press Ctrl + A: The cursor instantly jumps to the beginning of the line.
• Press Ctrl + E: The cursor instantly jumps to the end of the line.

These two shortcuts are standard Readline bindings and work universally across most Shell environments.

3. Search Command History (Ctrl + R)#

This is an operation that makes you look very “geeky.” What if you want to execute a complex docker run command you ran a few days ago, but can’t remember the exact parameters?

1. Press Ctrl + R.
2. Type a keyword (e.g., docker).
3. The terminal will automatically show the most recent matching history record.
4. If you want to find an even older one, just keep pressing Ctrl + R.

4. Free Your Hands with Aliases#

If you find yourself frequently typing long commands, like git commit -m "update", you must set up aliases.

Edit your ~/.zshrc file:

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# Quick commit
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alias gcm="git commit -m"
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# Quick status check
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alias gs="git status"
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# Show hidden files with human-readable sizes
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alias ll="ls -lah"
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# Quick flush DNS cache
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alias flushdns="sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder"

After saving, run source ~/.zshrc. From now on, you only need to type gcm "message".

5. open . - Open the Current Folder Graphically#

Sometimes manipulating files in the terminal gets tiring, and you just want to use Finder to drag and drop files. Just type:

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open .

macOS will immediately pop up a Finder window displaying the exact directory your terminal is currently in. This trick is especially handy when managing blog image assets.

Summary#

The purpose of tools is to serve people. While these terminal tips may seem minor, the few seconds saved every day accumulate into a massive efficiency boost.