(bash.info) Compound Commands
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3.2.4 Compound Commands
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* Looping Constructs Shell commands for iterative action.
* Conditional Constructs Shell commands for conditional execution.
* Command Grouping Ways to group commands.
Compound commands are the shell programming constructs. Each
construct begins with a reserved word or control operator and is
terminated by a corresponding reserved word or operator. Any
redirections ( Redirections) associated with a compound command
apply to all commands within that compound command unless explicitly
overridden.
In most cases a list of commands in a compound command's description
may be separated from the rest of the command by one or more newlines,
and may be followed by a newline in place of a semicolon.
Bash provides looping constructs, conditional commands, and
mechanisms to group commands and execute them as a unit.
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