10 Essential Linux Command-Line Tricks to Boost Your Productivity

As online systems become more complex, mastering common Linux commands can dramatically improve daily efficiency for developers and operations engineers.

TOP-1: Fast Cursor Movement Shortcuts

Recommendation: ★★★★★

Scenario: Editing long commands where quick navigation is needed.

Methods:

<code>Ctrl + a  // Move cursor to the beginning of the line
Ctrl + e  // Move cursor to the end of the line
Ctrl + w  // Delete the word before the cursor
Esc + b   // Move left one word
Esc + f   // Move right one word</code>

TOP-2: Vim Quick Operations

Recommendation: ★★★★★

Scenario: Editing configuration files.

All actions are performed in Vim's command mode (press

Esc

first if unsure).

<code>:set nu          // Show line numbers
:20              // Jump to line 20
:%s/aaa/bbb/g    // Replace all "aaa" with "bbb"
ddp              // Swap current line with the next line
ci"              // Delete content inside double quotes (use ci' for single quotes)</code>

TOP-3: Return to Previous Directory

Recommendation: ★★★★★

Scenario: Quickly toggle between two directories.

Command:

cd -

Running this command swaps the current directory with the last one you visited.

TOP-4: Cross‑Server File Transfer Without Password

Recommendation: ★★★☆☆

Scenario: Copy files between servers when you cannot use

scp

due to missing passwords.

Method 1 – Using

nc

:

<code># On source machine
nc -l 10017 < abc.sh
# On target machine
nc 1.1.1.1 10017 > abc.sh</code>

Method 2 – Using a simple Python HTTP server:

<code># On source machine
python -m SimpleHTTPServer 10010
# On target machine
wget http://1.1.1.1:10010/abc.sh</code>

TOP-5: Simplify Commands

Recommendation: ★★★★★

Scenario: Quickly clear a file or create an empty one.

Command:

> a.log

When

a.log

exists, this truncates the file; when it does not exist, it creates an empty file.

Quickly repeat the last command’s final argument (space‑separated) by pressing

Esc

followed by

.

.

TOP-6: Query Local Intranet IP

Recommendation: ★★★★☆

Scenario: Retrieve the machine’s internal IP address.

Command:

hostname -i

Note: Works only on machines with DNS resolution;

hostname

changes the host name, while

host

queries DNS records.

TOP-7: Quick Redis Connection via Telnet

Recommendation: ★★★★☆

Scenario: When no Redis client is installed.

Command:

telnet 127.0.0.1 6379

Use

telnet <redis_host> <port>

to connect, but for production prefer a proper Redis client such as

redis-cli

.

TOP-8: Send Current Task to Background

Recommendation: ★★★★★

Scenario: Temporarily suspend a foreground process (e.g., editing in Vim) to run another command.

Press

Ctrl+Z

to suspend, then run your command (e.g.,

python aaa.py

), and return with

fg

.

TOP-9: Locate Process Working Directory

Recommendation: ★★★★★

Scenario: Find the directory of a running process.

Command (replace

pid

with the actual process ID):

pwdx pid

Useful for identifying where a script like

python test.py

is executing from.

TOP-10: Save Command Output While Viewing It

Recommendation: ★★★★★

Scenario: Log script output and monitor it in real time.

Command:

python test.py | tee a.log

This streams output to the terminal and simultaneously writes it to

a.log

, eliminating the need for separate

tail -f

sessions.

These tips aim to make your Linux workflow smoother and more efficient.