shell scripting – Page 3 – CodeRavo

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

Loops in Shell Scripting: Iterating with Variables

In shell scripting, loops are a crucial construct for executing repetitive tasks. One common requirement is … Loops in Shell Scripting: Iterating with VariablesRead more

arithmetic-for-loop, iteration, loops, seq-command, shell scripting, variables

Redirecting Command Output to Both a File and Standard Output in Bash

When working with command-line tools in Unix-based systems, you often need to capture their output for … Redirecting Command Output to Both a File and Standard Output in BashRead more

Bash, pipe, redirect, shell scripting, stderr, stdout, tee, unbuffer

Listing Directories in Bash

Listing Directories in Bash The Bash shell provides several ways to list directories within a specified … Listing Directories in BashRead more

Bash, directory, directory-listing, File System, find, globbing, listing-directories, ls, path-expansion, shell scripting