Bash - Lists of Commands

Bash Liste Des Attaques Ovh


A list of command is a sequence of one or more pipelines

  • separated by one of the operators: ‘;’, ‘&’, ‘&&’, or ‘||’,
  • and optionally terminated by one of ‘;’, ‘&’, or a newline.
Control Operators Definition
; (Semicolon) or newline Delimit commands, start a command sequentially
& (Ampersand) Start a command asynchronously
&& (AND) The next command is executed only if the first command returns true
|| (OR) The next command is executed if the first command doesn't return true

Same as compound list ?

Operators Precedence

Of these list operators, ‘&&’ and ‘||’ have equal precedence, followed by ‘;’ and ‘&’, which have equal precedence.

Documentation / Reference

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Bash Liste Des Attaques Ovh
Bash - Case

The case control statement execute commands based on regular expression pattern matching. Initscript example: Selectively execute COMMANDS based upon WORD matching glob PATTERN. The | is used to...
Bash Liste Des Attaques Ovh
Bash - Expression

An expression is a string that is understood by bash.
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Bash - For Statement

The for statement in bash forloop statements of Bash With a file. Locate returns a list of file in one line separated by a space. This code use then the loop array loop with the Bash version...
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Bash - If then else

if execute conditionally a block with a list of command based on the exit status of a list of command The if list. The command list) is executed (Generally there is one or more conditional command...
Bash Liste Des Attaques Ovh
Bash - Pipeline

This article talks the syntax of a Shell Pipeline in Bash All command(s) in a pipeline are executed: in parallel. and started in a subshell (meaning that the environment is not passed along the...
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Bash - Until

Bash - Until The until syntax in bash The until command is identical to the while command, except that the test is negated; the do list is executed as long as the last command in list returns...
Bash Liste Des Attaques Ovh
Bash - While

This article is dedicated to the while syntax in Bash. where: : is the no-op command; its exit status is always 0 The command: lists the file with the ls executable (ls -l) pipe the...
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Bash Shell and (Unix|Linux) Utilities (XCU)

Bash is: Bourne-Again shell (Os Shell). It means that this is scripting language used in a terminal based around The articles of this section are over: the Bash (Bourne-Again Shell) the...
Bash Liste Des Attaques Ovh
Shell - Compound Commands

A compound command is one of the following: where () defines the execution environment as a subshell Variable assignments and builtin commands that affect the shell’s environment do not...
Bash Liste Des Attaques Ovh
What are Control Operators in Bash?

A control operator is a separator in a list of command that controls the execution of the commands. They implement: Boolean operator Block syntax End of statement Pipe operators A token that...

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