Articles about command | UserComp.com

Understanding Bash Prompt Abbreviations: An Overview

Resolve repetitive typing errors by creating and persisting Bash aliases in the .bashrc file for improved command-line efficiency.

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Cutting Short Video Clip Renders Subtitles Command Line (Windows)

Use ffmpeg to cut short video clips and burn subtitles directly from the Windows command line.

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How to Run a Bash Script in Zsh: A Step-by-Step Guide

Resolve Bash script execution errors in Zsh by explicitly invoking the bash interpreter to ensure correct syntax handling.

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Syntax Use in Command Line Prompt to Enter Cellular Phone Number for Remote Data Sync

Resolve rsync connection failures by replacing invalid phone numbers with the device's actual IP address obtained via USB tethering or Wi-Fi hotspot.

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Combine Text Files - command (batch) processes

Merge multiple text files into a single output file in Windows using the copy command with binary mode to prevent unwanted EOF markers.

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Jumping Beginning Command in Windows Terminal: An Alternative Solution for Linux Users

Add custom keybindings in Windows Terminal settings.json to enable Ctrl+A and Ctrl+E for line navigation.

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Replacing Special Characters in a Text File with Linux Command Line

Use sed to replace special characters in Linux text files while preserving data integrity and handling shell escaping correctly.

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Echo the exact command used to start a Bash script

Echo the exact command used to start a Bash script using the $0 special variable.

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How to read All Mail on IMAP Gmail with the Alpine / Pine e-mail client?

Configure Alpine or Pine to access Gmail's [Gmail]/All Mail folder via IMAP by enabling IMAP in settings and using the correct server credentials.

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Troubleshooting Alias Command 'Nothing' in Tech Support

Resolve empty alias output by distinguishing shell aliases from exported functions for subprocess visibility in Python scripts.

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Linux Find Command Using 'delete' and 'prune' Gives Error: A Guide for Tech Support

Resolve Linux find command errors when combining delete and prune by separating operations or using -exec rm -rf.

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Troubleshooting Windows: How to Fix Hard Drive Issues Using Command Line

Fix hard drive errors, file system corruption, and boot failures using chkdsk, sfc, and diskpart commands.

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Download File from Web Using Linux Command Line

Resolve wget HTTP 301 Moved Permanently errors by using the -L flag to follow redirects.

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How to Kill Windows Services in Cygwin

Resolve the issue of safely stopping Windows services from Cygwin by using net stop instead of kill to prevent data corruption and handle dependencies correctly.

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Python Script Keeps Closing and Does Not Make a New CSV File

Resolve Python script crashes and missing CSV files by using persistent terminals, input pauses, and the with statement for proper file handling.

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Fixing CJK Unicode Characters Output Issue in Wine Terminal

Resolve CJK question marks in Wine terminal output by setting registry code pages to UTF-8.

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Discrepancy in Disk Usage Between du and ls Commands in Linux: Possible Explanations

Explains why du reports higher disk usage than ls due to block allocation, sparse files, and directory overhead.

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Resolving Error: Incorrect 1.3GB External HDD Target Parameter with dd Manjaro Linux

Fixes the incorrect target parameter error when using dd on Manjaro Linux by ensuring the destination is a raw disk rather than a partition.

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How to Get File Description Field from File Metadata Using Command Line

Extract the file description field from Windows file metadata using PowerShell VersionInfo properties.

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Add Arbitrary Text to Linux Date Command Output

Add custom text to Linux date output using printf for consistent formatting in logs and scripts.

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Granting Full Control Permissions to a Folder for a Local User without Changing Ownership (Command Line)

Grant full control permissions to a local user on a Windows folder using icacls without changing the directory ownership.

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Getting an Un-expanded Command Line: A Tech Support Guide

Retrieve the full unexpanded command line of a running Linux process by reading /proc/PID/cmdline and replacing null bytes with spaces.

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FFMPEG: Program does not quit when it returns an error (command line loops)

Resolve infinite loops in scripts by checking FFmpeg's exit code to stop execution on errors.

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Bash Shell - Shorter Way to Remove Last Characters from the File Name

Remove file extensions or suffixes from filenames in Bash using parameter expansion for fast, portable string manipulation without external processes.

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How to Delete All Words Starting with a Specific String in a File

Remove all words starting with a specific string from a file using sed.

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7-Zip Command Line: Files Not Included When Compressing Subfolders

Resolve missing files in 7-Zip archives by adding the -r switch to enable recursive compression of subfolders.

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How to disable BitLocker system drive encryption on Windows 10 Home

Disable BitLocker system drive encryption on Windows 10 Home using the manage-bde command in an elevated Command Prompt.

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How to pass bash's $@ over ssh accounting for spaces in arguments?

Pass bash arguments over SSH while preserving spaces by using arrays instead of string expansion.

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Using curl wttr.in to Display Only Current Temperature Value

Extract the current temperature integer from wttr.in using curl, grep, and sed for clean scripting output.

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How to Extract Text Between Two Strings from a File and Save the Output

Extract text between two specific strings from a file and save the output using PowerShell or findstr on Windows.

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Batch File Not Working with Space in File Name

Resolve batch file execution errors caused by spaces in filenames by properly enclosing file paths in double quotes.

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Error: rm cannot remove 'dir-name' - Directory not empty

Resolve the rm directory not empty error by using the recursive flag to delete non-empty folders and their contents.

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Sending Input Longer Than 8192 Characters to Commands: Options and Considerations

Bypass the Windows command prompt 8192 character limit for stdin by redirecting input from a file or using PowerShell pipelines.

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How to convert code from test format to if fi format?

Convert legacy test command usage to idiomatic if fi structures for improved readability and performance.

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Linux RHEL 7 - Shell Script

Resolve Linux RHEL 7 script execution failures by fixing permissions, shebangs, line endings, and environment variables.

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RoboCopy to hidden shadow drive partition; error code reads as Invalid Parameter #26 :x\\

Fix RoboCopy Invalid Parameter #26 error when copying to hidden shadow drive partitions by appending a trailing backslash to the destination volume GUID path.

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Ctrl Key Inverts Letter Instead of Shortcut: A Troubleshooting Guide

Resolve third-party software or accessibility features causing the Ctrl key to invert letters instead of executing standard shortcuts.

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Troubleshooting: Running cwebp.exe in a Batch File with Space in File Name

Resolve cwebp.exe not recognized errors in batch files by quoting path variables to handle spaces in file names.

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PHP File Execution Not Working on Freshly Installed Ubuntu Unity (23.10), Prints File Contents Instead

Resolve PHP files printing as text in Ubuntu by explicitly running them with the php command or starting a local server.

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Jerky Scrolling in Ubuntu: A Love-Hate Relationship with Linux and Windows

Resolve jerky scrolling in Ubuntu by adjusting xinput pointer acceleration and display server settings.

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How to Change Mac Terminal Background Color: A Comprehensive Guide

Customize Mac Terminal background color to improve readability and reduce eye strain during command-line sessions.

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Capturing Entire Process Tree in macOS: A macOS Command Line Tool

Capture and trace the entire process tree on macOS using native ps and dtruss commands for debugging and monitoring.

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What Does 'cp -ruv --update Remove Files Destination?' Mean?

Clarifies that cp -ruv --update skips up-to-date files and never deletes existing destination files, preventing accidental data loss during recursive copies.

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Windows 11: Using Command Line Path for Microsoft Office 365, Edge, Chrome, and Firefox

Resolve command line execution failures for Office 365, Edge, Chrome, and Firefox by using correct binary paths instead of shell shortcuts.

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SSH: Check Exact Command Used on Target Machine

Resolve unreliable command inspection by using SSH_CONNECTION or ps to verify exact remote executions instead of flawed $0 parsing.

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BASH Script to Copy Image Files Recursively from Camera Folders and Rename with Creation Date

Organize camera photos by recursively copying them into date-based directories and renaming files to prevent collisions while safely handling special characters in filenames.

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Log off session after x time in Windows

Automatically log off Windows sessions after a specified inactivity period using the shutdown command to secure unattended computers.

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Get tar command to show hidden resources for files archive?

Use tar -tvf to list hidden files and resource forks in archives for cross-platform compatibility.

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Error: Get-AppXPackage Commandlet Not Recognized in PowerShell

Resolve the Get-AppXPackage command not recognized error by running PowerShell as administrator or manually importing the Appx module.

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Understanding Recursion in the Windows Attrib Command

Resolve the issue of Windows Attrib command only affecting the current directory by using the /S switch to recursively modify file attributes in subdirectories.

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