Answer by Iskustvo for Is $() a subshell?
Yes, ( commands... ) is a bash subshell that will execute commands... in another process. The only difference when you have $( commands... ) is that this part of code will after execution of...
View ArticleAnswer by Gilles for Is $() a subshell?
$(…) is a subshell by definition: it's a copy of the shell runtime state¹, and changes to the state made in the subshell have no impact on the parent. A subshell is typically implemented by forking a...
View ArticleAnswer by Ignacio Vazquez-Abrams for Is $() a subshell?
From the bash(1) man page in bash version 4.4, "EXPANSION" section, "Command Substitution" subsection: Bash performs the expansion by executing command in a subshell environment [...]
View ArticleIs $() a subshell?
I understand the subshell syntax to be (<commands...>), is $() just a subshell that you can retrieve variable values from? Note: This applies to bash 4.4 based on different wording in their...
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