Bash (Unix shell): Difference between revisions

Revision as of 23:58, 26 August 2025

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{{Short description |GNU replacement for the Bourne shell}}

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{{Infobox software

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[ ] scripts execute the contents of a file in a subshell

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With the {{code| source}}, or synonymous {{code| .}} command, Bash reads and executes shell commands from a file by name.<ref name="gnuBuiltin">{{cite web |title=4.1 Bourne Shell Builtins |url=https://www.gnu.org/software/bash/manual/html_node/Bourne-Shell-Builtins.html |website=4 Shell Builtin Commands |publisher=[[Free Software Foundation, Inc.]] |access-date=August 25, 2025}}</ref>

With the {{code| source}}, or synonymous {{code| .}} command, Bash reads and executes shell commands from any text file by name.<ref>

{{Cite web

| access-date = 26 August 2025

| publisher = [[Free Software Foundation, Inc.]]

| title = 4.1 Bourne Shell Builtins

| url = https://www.gnu.org/software/bash/manual/html_node/TheBourne-SetShell-BuiltinBuiltins.html

| website = gnu.org

}}

</ref>

=== Login and non-login shells <span class="anchor" id="Login and non-login shells"></span><span class="anchor" id="Login shells"></span><span class="anchor" id="Non-login shells"></span> ===

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| publisher = [[GNU Project]]

| title = Bash Reference Manual: 4.3.1: The Set Builtin

| url = https://www.gnu.org/software/bash/manual/html_node/The-Set-Builtin.html

/software/bash/manual/html_node/The-Set-Builtin.html

| website = [[Free Software Foundation, Inc.]]

}}</ref>

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{{Blockquote

| ITERATION: Sometimes programs are repeated indefinitely or until a specific outcome is reached. Each execution of the instructions is an “iteration"iteration.”"<ref>

{{Cite web

| access-date = 15 August 2025