Articles about shell | UserComp.com

Powershell Script Not Running in Task Scheduler: A Troubleshooting Guide

Resolve PowerShell script failures in Task Scheduler by configuring execution policies, working directories, and user privileges.

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Generate Random Number: Email Typed

Generate a deterministic random number from an email address in Python using SHA-256 hashing to ensure consistent results across sessions.

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Zsh: Partial Colouring Completion with Preserved unmatched parts of LS_COLORS

Configure Zsh completion to apply LS_COLORS only to matched text while preserving the appearance of unmatched input.

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Opt in Microsoft Automatic Updates using PowerShell

Enable Windows automatic updates by setting the NoAutoUpdate registry value to 0 using PowerShell.

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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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Can't See Taskbar Window with CMD/PowerShell - Here's the Fix!

Resolve hidden CMD or PowerShell windows by using Alt+Tab, checking the system tray, or restarting Windows Explorer.

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WSL2: Administrator Accounts and PowerShell Installation

Resolve WSL2 installation errors on administrator accounts by enabling virtualization features, configuring PowerShell execution policies, and fixing permission issues.

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Prevent Command Leading Spaces Showing in zsh History on macOS

Configure HIST_IGNORE_SPACE in zsh to exclude commands with leading spaces from the history file on macOS.

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PowerShell and Batch: Get Spaces using Multiplatform Approaches

Generate consistent whitespace in PowerShell and Batch scripts for cross-platform formatting, alignment, and visual separators.

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Troubleshooting Linux RHEL 7 - Ansible - Execute command in shell

Resolve Ansible shell module failures on RHEL 7 by fixing permission denied, file not found, and SELinux errors through proper user context, absolute paths, and security policy adjustments.

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Identify PowerShell Local Session

Resolve unreliable hardware-based heuristics by comparing $env:COMPUTERNAME with Win32_ComputerSystem to accurately identify local PowerShell sessions.

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How can I directly negate options in PowerShell?

Resolve PowerShell syntax errors when attempting to negate command parameters by using conditional logic, boolean variables, or parameter splatting.

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PowerShell Redirection: Why Write-Host to File Isn't Working?

Resolve empty files when redirecting Write-Host output by using Write-Output or implicit expression results to send data to the success stream.

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Stopping a Windows 11 PowerShell Script Task in Task Scheduler

Resolve inability to stop Windows 11 scheduled PowerShell scripts by terminating the correct powershell.exe process via Task Manager or Stop-Process cmdlet.

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PowerShell Script: Check Drive Health with Drive Letter

Correlate physical disk health status with Windows drive letters using PowerShell Storage module cmdlets.

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How to Programmatically Change the Windows 11 Color Scheme

Automate switching Windows 11 to dark or light mode by modifying registry keys via PowerShell scripts.

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Task Scheduler: Executing PowerShell Script with Errors

Resolve PowerShell script failures in Task Scheduler by fixing execution policy restrictions and missing working directories.

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How to replace the values/text in XML file using PowerShell

Replace values in XML files using PowerShell while preserving special characters and preventing encoding 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 Add Homebrew to PATH in Your Shell Profile

Resolve Homebrew command not found errors by adding the binary directory to your shell's PATH environment variable.

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Automatically install *.pkg via shell

Automate silent macOS .pkg installations via the terminal using sudo installer to bypass GUI prompts for non-interactive deployments.

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Automating WinSCP FTP Transfers with Powershell: Variable Space-Containing Paths Causing Issues

Resolve WinSCP FTP transfer failures caused by spaces in file paths when using PowerShell command-line execution.

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Understanding the 14-Digit Time Format in Windows Registry

Convert 14-digit Windows Registry FILETIME timestamps to readable dates using PowerShell for accurate Office 365 metadata analysis.

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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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Automating PowerShell Prompt using Control Sequences with fzf

Resolve PSReadLine compatibility issues when integrating fzf for fuzzy history search in PowerShell.

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Temporarily Disable History in Zsh Like Bash: A Tech Support Guide

Disable Zsh command history recording and clear the in-memory buffer using setopt NO_HISTORY and history -c.

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Troubleshooting Unauthorized Operation Errors with PowerShell

Resolve PowerShell unauthorized operation errors by adjusting execution policies or running the console with elevated administrator privileges.

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Checking Active Network Shares within a Domain using PowerShell Script

Automate verification of active network shares across domain servers using PowerShell to identify discrepancies and ensure resource accessibility.

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Checking multiple .csv file exist or not from folder

Verify multiple CSV files exist in a folder using PowerShell or batch scripts to prevent automation failures from missing data sources.

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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 carry out a git command without giving control to the interactive git console?

Resolve Git commands hanging in automated workflows by disabling the interactive pager and configuring silent credential helpers.

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How to Install UltraVNC msi on Machine Using PowerShell

Resolve manual installation prompts and ensure consistent UltraVNC deployment across multiple machines using silent PowerShell execution.

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PowerShell 5.1 Console: How to Improve Default Error Handling

Resolve silent script failures in PowerShell 5.1 by configuring $ErrorActionPreference and implementing Try-Catch-Finally blocks for robust error handling.

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Extracting String Specified Character from Machine Names in Tech Support

Extract specific characters or digits from machine names in PowerShell using substring, regex, or split methods.

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Scenarios Where 'cmd.exe' is Insufficient: The Power of PowerShell

PowerShell solves the limitations of cmd.exe by enabling object-oriented data processing, robust error handling, and efficient remote system administration.

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How to Run a PowerShell Script in Windows 11 and Keep the PowerShell Console Open

Prevents PowerShell console from closing immediately after script execution to allow review of output and error messages.

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Equivalent Batch PowerShell: Replacing Batch Script with PowerShell

Replace fragile Batch scripts with robust PowerShell by leveraging object-oriented pipelines and native cmdlets for reliable file and system management.

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Powershell - get-childitem but only return directories that have items in them

Filter out empty directories from PowerShell Get-ChildItem output to display only folders containing items.

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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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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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Iterating Arrays and Spaced String Pairs in Zsh: A Comprehensive Guide

Resolve subshell scope issues in Zsh by using redirection instead of pipes to preserve variable changes during array iteration.

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How to Remove Special Characters from Folder Names in Windows 10

Resolve Windows 10 folder name errors caused by invalid characters like colons and asterisks using a PowerShell script to safely replace them with underscores.

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How to Open File Dialogue Window in SSH for Windows, PowerShell, and Ubuntu 20.04

Resolve the inability to open native file dialogs in SSH sessions by using SCP, SFTP, or dedicated GUI clients like WinSCP.

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Troubleshooting Compatibility: Bash read -e -i "Test" needs to be in Zsh

Resolve the read illegal option -i error in Zsh by replacing Bash-specific read -e -i with vared for interactive input or parameter expansion for defaults.

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Understanding the Order of Shell Source Files: A Complete Overview

Resolve missing aliases and undefined variables by clarifying the execution order of shell source files for login and non-login shells.

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How to nicely print time difference in bash?

Calculate human-readable time differences in Bash by converting Unix timestamps to days, hours, minutes, and seconds.

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How to Get Free Space Info of Unmounted NTFS Folders in Windows

Retrieve free space for unmounted NTFS volumes by temporarily assigning a drive letter via mountvol and querying it with PowerShell Get-Volume.

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Routing all traffic to local socket server to act as a tunnel

Configure Windows to route all HTTP and HTTPS traffic to a local socket server by setting system-wide proxy settings via PowerShell instead of using netsh.

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PowerShell Command to Display Specific Text from a Website: file.txt with Get-Content

Resolve the error when using Get-Content with URLs by fetching web pages via Invoke-WebRequest and extracting text with regular expressions.

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