shell scripting – Page 5 – CodeRavo

Performing Logical OR Operations for Integer Comparison in Shell Scripting

Introduction to Logical Operators in Shell Scripting When writing shell scripts, you often need to perform … Performing Logical OR Operations for Integer Comparison in Shell ScriptingRead more

arithmetic-evaluation, Bash, integer-comparison, logical-or-operation, shell scripting, short-circuit-behavior, test-construct

Executing Tasks at Sub-Minute Intervals: Alternatives to Cron

Introduction Cron is a time-based job scheduler in Unix-like operating systems, designed to execute scripts or … Executing Tasks at Sub-Minute Intervals: Alternatives to CronRead more

cron, fcron, Linux, shell scripting, sub-minute-scheduling, systemd, task-scheduler

Handling 'sudo: no tty present' Errors

Understanding the ‘sudo: no tty present’ Error The error message "sudo: no tty present and no … Handling 'sudo: no tty present' ErrorsRead more

askpass, Automation, Linux, passwordless-sudo, Security, shell scripting, sudo, sudoers, terminal, tty

Testing if a Variable is a Number in Bash

In Bash, it’s often necessary to verify whether a variable contains a numeric value. This can … Testing if a Variable is a Number in BashRead more

arithmetic-expansion, Bash, numeric validation, pattern matching, regular expressions, shell scripting

How to List Files in a Directory Using Shell Scripting

Introduction When working with shell scripts, you often need to interact with files and directories. One … How to List Files in a Directory Using Shell ScriptingRead more

Bash, directory, find command, for loop, globbing, hidden-files, list-files, shell scripting

Mastering Single-Line Loops in Bash

Loops are a fundamental construct in programming, allowing you to execute a set of commands repeatedly. … Mastering Single-Line Loops in BashRead more

Bash, for loop, loops, shell scripting, single-line-loops, until-loop, while loop

Redirecting Standard Output and Standard Error in Bash

Redirecting Standard Output and Standard Error in Bash When executing commands in Bash, programs communicate through … Redirecting Standard Output and Standard Error in BashRead more

Bash, file-descriptors, logging, redirection, Scripting, shell scripting, standard-error, standard-output, stderr, stdout

Setting Environment Variables from a File of Key/Value Pairs in Bash

Introduction In many scripting and development scenarios, managing environment variables effectively is crucial. This becomes especially … Setting Environment Variables from a File of Key/Value Pairs in BashRead more

Bash, config-file, Environment Variables, Export, set-a, shell scripting, source, xargs

Echoing Shell Commands in Scripts: Best Practices and Techniques

When writing shell scripts, it can be invaluable to have visibility into what commands are being … Echoing Shell Commands in Scripts: Best Practices and TechniquesRead more

bash-debugging, command-tracing, echoing-commands, logging, script-transparency, set-x, shell scripting

Constructing Complex Conditional Statements in Shell Scripts

Constructing Complex Conditional Statements in Shell Scripts Shell scripts are powerful tools for automating tasks, and … Constructing Complex Conditional Statements in Shell ScriptsRead more

and, Bash, complex-conditions, conditional logic, conditional statements, if-statement, logical-operators, or, shell scripting, shell-script