Bash Script - Difference between Bash Script and Shell Script Last Updated : 26 Mar, 2025 Comments Improve Suggest changes Like Article Like Report In computer programming, a script is defined as a sequence of instructions that is executed by another program. A shell is a command-line interpreter of Linux which provides an interface between the user and the kernel system and executes a sequence of instructions called commands. A shell is capable of running a script. A script that is passed to a shell is known as a shell script.Bash script:A Bash Script is just like a simple text file, consisting of a number of commands that we usually write in a command line. In Linux file systems, they are used for doing repetitive tasks. A Bash Script may contain a number of commands, or it might contain elements like loops, functions, conditional constructs, etc. In simple words, a Bash script is a computer program that is written in the Bash programming language.Some of the features of Bash are given below:Bash can be invoked by single-character command-line options as well as multi-character command-line options. For example, (-a, -b) is a single-character command-line, and --debugger is a multi-character command-line option.Bash consists of Key bindings.Bash provides one-dimensional arrays with the help of which we can easily manipulate the lists of data.Bash provides control structures. For example, construct structure, etc.Example:#!/bin/bash myString="GeeksforGeeks"echo "myString: $myString"Output:Bash scriptShell script:Shell is considered as a special user program that provides a platform or interface to users so that they can use operating system services. Users can provide human-readable commands to a shell and then shell convert them into kernel understandable form. A shell is considered a command language interpreter that can execute commands which can be read from input devices like a keyboard.Some of the features of a Shell are given below:Wildcard substitution in file names (pattern-matching): To carry out commands on a bunch of files by mentioning a pattern to match rather than mentioning an actual file name.Background processing: To make lengthy tasks run in the background in order to free the terminal for concurrent interactive processing.Piping: To combine any number of commands together in order to form a complex program. The output of one program becomes the input of another command.Shell variable substitution: It stores the data in user-defined variables and predefined shell variables.Now a shell can accept a number of commands through a file, known as a shell script. A shell script contains a number of commands that are executed by a shell. For example, Example:#!/bin/shmyString="GeeksforGeeks"echo "myString: $myString"Output:Shell scriptTable of difference between bash script and shell scriptSr. No.Bash ScriptShell Script01The bash script is a script that is specifically created for Bash.The shell script is a script that can be executed in any shell, depending on the shebang and compatibility.02Bash scripting is a subset of shell scripting.Shell scripting is a method to automate tasks as a collection of shell commands.03The bash script is one form of shell script.Shells may be one of Korn, C shell, Bourne, Bash, etc.04Bash is an acronym for Bourne Again SHell and was developed by Brian Fox.The original Unix Shell (sh) was developed by Stephen Bourne.05Bash has more features as compared to traditional sh.The original Bourne Shell has fewer features compared to Bash.06We can use shebang, “#!/bin/bash” if we want to use Bash.We can use shebang, “#!/bin/sh” if we want to use the default system shell or Bourne shell.07Bash is more programmer-friendly as compared to traditional sh.Traditional sh is less programmer-friendly as compared to Bash.ConclusionWhile Bash scripts and shell scripts are similar, they are not the same. A Bash script is a type of shell script, one that's specially tailored for the Bash (Bourne Again Shell) environment. A shell script, though, is a catch-all phrase — it's any script that runs in a shell, whether Bash, sh, csh, ksh, or another kind of shell.If you're coding on Linux or Unix systems, recognizing the difference between Bash and shell scripting enables you to select the appropriate tool on the basis of compatibility, scripting requirements, and performance. Bash is more feature-rich, extremely programmer-friendly, and accommodates sophisticated scripting elements such as arrays, conditionals, and functions. Vanilla shell scripts (such as sh) are most suited for simple task automation and cross-platform portability. 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