225 lines
3.9 KiB
Plaintext
225 lines
3.9 KiB
Plaintext
===============================
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Commands
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===============================
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whoami
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---
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(program
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(command (command_name)))
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===============================
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Commands with arguments
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===============================
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cat file1.txt
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cat -n file1.txt file2.txt
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---
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(program
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(command (command_name) (argument))
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(command (command_name) (argument) (argument) (argument)))
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===============================
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Commands with quoted arguments
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===============================
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echo "hello $(whoami), this is $(uname)"
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echo 'hi'
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---
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(program
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(command (command_name) (quoted_argument
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(command_substitution (command (command_name)))
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(command_substitution (command (command_name)))))
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(command (command_name) (single_quoted_argument)))
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===============================
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Quoted command names
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===============================
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"$a/$b" c
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---
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(program
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(command (quoted_argument (expansion (variable_name)) (expansion (variable_name))) (argument)))
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===============================
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Commands with numeric arguments
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===============================
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exit 1
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---
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(program
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(command (command_name) (argument)))
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===================================
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Commands with environment variables
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===================================
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VAR1=1 ./script/test
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VAR1=a VAR2="ok" git diff --word-diff=color
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---
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(program
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(command
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(environment_variable_assignment (variable_name) (argument))
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(command_name))
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(command
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(environment_variable_assignment (variable_name) (argument))
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(environment_variable_assignment (variable_name) (quoted_argument))
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(command_name)
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(argument)
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(argument)))
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===================================
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Empty environment variables
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===================================
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VAR1=
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VAR2= echo
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---
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(program
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(environment_variable_assignment (variable_name))
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(command (environment_variable_assignment (variable_name)) (command_name)))
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===================================
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Pipelines
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===================================
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whoami | cat
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cat foo | grep -v bar
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---
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(program
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(pipeline
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(command (command_name))
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(command (command_name)))
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(pipeline
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(command (command_name) (argument))
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(command (command_name) (argument) (argument))))
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===================================
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Lists
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===================================
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a | b && c && d; d e f || e g
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---
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(program
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(list
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(list
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(pipeline
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(command (command_name))
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(command (command_name)))
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(command (command_name)))
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(command (command_name)))
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(list
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(command (command_name) (argument) (argument))
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(command (command_name) (argument))))
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===============================
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File redirects
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===============================
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whoami > /dev/null
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cat a b > /dev/null
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2>&1 whoami
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---
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(program
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(command
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(command_name)
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(file_redirect (argument)))
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(command
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(command_name)
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(argument)
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(argument)
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(file_redirect (argument)))
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(command
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(file_redirect (file_descriptor) (argument))
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(command_name)))
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===============================
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Variable expansions
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===============================
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cat $FOO
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---
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(program
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(command
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(command_name)
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(expansion (variable_name))))
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===============================
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Variable expansion operators
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===============================
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cat ${BAR} ${ABC=def} ${GHI:?jkl}
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---
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(program
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(command
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(command_name)
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(operator_expansion (variable_name))
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(operator_expansion (variable_name) (argument))
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(operator_expansion (variable_name) (argument))))
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===============================
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Heredoc redirects
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===============================
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node <<JS
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console.log("hi")
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JS
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bash -c <<JS
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echo hi
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JS
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---
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(program
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(command
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(command_name)
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(heredoc_redirect (heredoc)))
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(command
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(command_name)
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(argument)
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(heredoc_redirect (heredoc))))
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===============================
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Heredocs with variables
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===============================
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node <<JS
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a $B ${C}
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JS
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exit
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---
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(program
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(command
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(command_name)
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(heredoc_redirect (heredoc
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(expansion (variable_name))
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(operator_expansion (variable_name)))))
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(command (command_name)))
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