Returns true if self is a Monday, false otherwise.
Returns the integer month of the year for self, in range (1..12):
t = Time.new(2000, 1, 2, 3, 4, 5, 6) # => 2000-01-02 03:04:05 +000006 t.mon # => 1
Returns the integer month of the year for self, in range (1..12):
t = Time.new(2000, 1, 2, 3, 4, 5, 6) # => 2000-01-02 03:04:05 +000006 t.mon # => 1
Returns true if self represents a Monday, false otherwise:
t = Time.utc(2000, 1, 3) # => 2000-01-03 00:00:00 UTC t.monday? # => true
Related: Time#tuesday?, Time#wednesday?, Time#thursday?.
Returns the ‘rest’ of the [stored string] (all after the current [position]), which is the [target substring]:
scanner = StringScanner.new('foobarbaz') scanner.rest # => "foobarbaz" scanner.pos = 3 scanner.rest # => "barbaz" scanner.terminate scanner.rest # => ""
Associates the given object with the given key; returns object.
Searches for a hash key equivalent to the given key; see Hash Key Equivalence.
If the key is found, replaces its value with the given object; the ordering is not affected (see Entry Order):
h = {foo: 0, bar: 1} h[:foo] = 2 # => 2 h[:foo] # => 2
If key is not found, creates a new entry for the given key and object; the new entry is last in the order (see Entry Order):
h = {foo: 0, bar: 1} h[:baz] = 2 # => 2 h[:baz] # => 2 h # => {:foo=>0, :bar=>1, :baz=>2}
Related: []; see also Methods for Assigning.
Creates, updates, or deletes the named environment variable, returning the value. Both name and value may be instances of String. See Valid Names and Values.
If the named environment variable does not exist:
If value is nil, does nothing.
ENV.clear ENV['foo'] = nil # => nil ENV.include?('foo') # => false ENV.store('bar', nil) # => nil ENV.include?('bar') # => false
If value is not nil, creates the environment variable with name and value:
# Create 'foo' using ENV.[]=. ENV['foo'] = '0' # => '0' ENV['foo'] # => '0' # Create 'bar' using ENV.store. ENV.store('bar', '1') # => '1' ENV['bar'] # => '1'
If the named environment variable exists:
If value is not nil, updates the environment variable with value value:
# Update 'foo' using ENV.[]=. ENV['foo'] = '2' # => '2' ENV['foo'] # => '2' # Update 'bar' using ENV.store. ENV.store('bar', '3') # => '3' ENV['bar'] # => '3'
If value is nil, deletes the environment variable:
# Delete 'foo' using ENV.[]=. ENV['foo'] = nil # => nil ENV.include?('foo') # => false # Delete 'bar' using ENV.store. ENV.store('bar', nil) # => nil ENV.include?('bar') # => false
Raises an exception if name or value is invalid. See Invalid Names and Values.
Returns revision information for the erb.rb module.
The reason this block was terminated: :break, :redo, :retry, :next, :return, or :noreason.
Register port as a monitoring port. If the ractor terminated, the port received a Symbol object. :exited will be sent if the ractor terminated without an exception. :aborted will be sent if the ractor terminated with a exception.
r = Ractor.new{ some_task() } r.monitor(port = Ractor::Port.new) port.receive #=> :exited and r is terminated r = Ractor.new{ raise "foo" } r.monitor(port = Ractor::Port.new) port.receive #=> :terminated and r is terminated with an exception "foo"
Unregister port from the monitoring ports.
Creates a new child process by doing one of the following in that process:
Passing string command_line to the shell.
Invoking the executable at exe_path.
This method has potential security vulnerabilities if called with untrusted input; see Command Injection.
Returns:
true if the command exits with status zero.
false if the exit status is a non-zero integer.
nil if the command could not execute.
Raises an exception (instead of returning false or nil) if keyword argument exception is set to true.
Assigns the command’s error status to $?.
The new process is created using the system system call; it may inherit some of its environment from the calling program (possibly including open file descriptors).
Argument env, if given, is a hash that affects ENV for the new process; see Execution Environment.
Argument options is a hash of options for the new process; see Execution Options.
The first required argument is one of the following:
command_line if it is a string, and if it begins with a shell reserved word or special built-in, or if it contains one or more meta characters.
exe_path otherwise.
Argument command_line
String argument command_line is a command line to be passed to a shell; it must begin with a shell reserved word, begin with a special built-in, or contain meta characters:
system('if true; then echo "Foo"; fi') # => true # Shell reserved word. system('exit') # => true # Built-in. system('date > /tmp/date.tmp') # => true # Contains meta character. system('date > /nop/date.tmp') # => false system('date > /nop/date.tmp', exception: true) # Raises RuntimeError.
Assigns the command’s error status to $?:
system('exit') # => true # Built-in. $? # => #<Process::Status: pid 640610 exit 0> system('date > /nop/date.tmp') # => false $? # => #<Process::Status: pid 640742 exit 2>
The command line may also contain arguments and options for the command:
system('echo "Foo"') # => true
Output:
Foo
See Execution Shell for details about the shell.
Raises an exception if the new process could not execute.
Argument exe_path
Argument exe_path is one of the following:
The string path to an executable to be called.
A 2-element array containing the path to an executable and the string to be used as the name of the executing process.
Example:
system('/usr/bin/date') # => true # Path to date on Unix-style system. system('foo') # => nil # Command failed.
Output:
Mon Aug 28 11:43:10 AM CDT 2023
Assigns the command’s error status to $?:
system('/usr/bin/date') # => true $? # => #<Process::Status: pid 645605 exit 0> system('foo') # => nil $? # => #<Process::Status: pid 645608 exit 127>
Ruby invokes the executable directly. This form does not use the shell; see Arguments args for caveats.
system('doesnt_exist') # => nil
If one or more args is given, each is an argument or option to be passed to the executable:
system('echo', 'C*') # => true system('echo', 'hello', 'world') # => true
Output:
C* hello world
Raises an exception if the new process could not execute.
Returns the current status of GC stress mode.
Updates the GC stress mode.
When stress mode is enabled, the GC is invoked at every GC opportunity: all memory and object allocations.
Enabling stress mode will degrade performance; it is only for debugging.
The flag can be true, false, or an integer bitwise-ORed with the following flags:
0x01:: no major GC 0x02:: no immediate sweep 0x04:: full mark after malloc/calloc/realloc
Executes command with expanding variables, and returns the exit status like as Kernel#system. If werror is true and the error output is not empty, returns false. The output will logged.
Returns an Array of SingleResponse for this BasicResponse.
The RubyGems version required by this gem
Called with encoding when the YAML stream starts. This method is called once per stream. A stream may contain multiple documents.
See the constants in Psych::Parser for the possible values of encoding.
Like Net::HTTP.get, but returns a Net::HTTPResponse object instead of the body string.
Sends a POST request to the server; forms the response into a Net::HTTPResponse object.
The request is based on the Net::HTTP::Post object created from string path, string data, and initial headers hash initheader.
With no block given, returns the response object:
http = Net::HTTP.new(hostname) http.post('/todos', 'xyzzy') # => #<Net::HTTPCreated 201 Created readbody=true>
With a block given, calls the block with the response body and returns the response object:
http.post('/todos', 'xyzzy') do |res| p res end # => #<Net::HTTPCreated 201 Created readbody=true>
Output:
"{\n \"xyzzy\": \"\",\n \"id\": 201\n}"