Results for: "Dir.chdir"

Iterates for each entry in the /etc/passwd file if a block is given.

If no block is given, returns the Enumerator.

The code block is passed an Passwd struct.

See Etc.getpwent above for details.

Example:

require 'etc'

Etc::Passwd.each {|u|
  puts u.name + " = " + u.gecos
}

Etc::Passwd.collect {|u| u.gecos}
Etc::Passwd.collect {|u| u.gecos}

Iterates for each entry in the /etc/group file if a block is given.

If no block is given, returns the Enumerator.

The code block is passed a Group struct.

Example:

require 'etc'

Etc::Group.each {|g|
  puts g.name + ": " + g.mem.join(', ')
}

Etc::Group.collect {|g| g.name}
Etc::Group.select {|g| !g.mem.empty?}

Retrieves the section and its pairs for the current configuration.

config.each do |section, key, value|
  # ...
end

See Zlib::GzipReader documentation for a description.

See Zlib::GzipReader documentation for a description.

Returns true if the file is a character device, false if it isn’t or if the operating system doesn’t support this feature.

File.stat("/dev/tty").chardev?   #=> true

Iterates over keys and objects in a weakly referenced object

Iterates over the buffer, yielding each value of data_type starting from offset.

If count is given, only count values will be yielded.

Example:

IO::Buffer.for("Hello World").each(:U8, 2, 2) do |offset, value|
  puts "#{offset}: #{value}"
end
# 2: 108
# 3: 108

Returns the field value as specified by header.

With the single argument header, returns the field value for that header (first found):

source = "Name,Name,Name\nFoo,Bar,Baz\n"
table = CSV.parse(source, headers: true)
row = table[0]
row.fetch('Name') # => "Foo"

Raises exception KeyError if the header does not exist.

With arguments header and default given, returns the field value for the header (first found) if the header exists, otherwise returns default:

source = "Name,Name,Name\nFoo,Bar,Baz\n"
table = CSV.parse(source, headers: true)
row = table[0]
row.fetch('Name', '') # => "Foo"
row.fetch(:nosuch, '') # => ""

With argument header and a block given, returns the field value for the header (first found) if the header exists; otherwise calls the block and returns its return value:

source = "Name,Name,Name\nFoo,Bar,Baz\n"
table = CSV.parse(source, headers: true)
row = table[0]
row.fetch('Name') {|header| fail 'Cannot happen' } # => "Foo"
row.fetch(:nosuch) {|header| "Header '#{header} not found'" } # => "Header 'nosuch not found'"

Calls the block with each header-value pair; returns self:

source = "Name,Name,Name\nFoo,Bar,Baz\n"
table = CSV.parse(source, headers: true)
row = table[0]
row.each {|header, value| p [header, value] }

Output:

["Name", "Foo"]
["Name", "Bar"]
["Name", "Baz"]

If no block is given, returns a new Enumerator:

row.each # => #<Enumerator: #<CSV::Row "Name":"Foo" "Name":"Bar" "Name":"Baz">:each>

Calls the block with each row or column; returns self.

When the access mode is :row or :col_or_row, calls the block with each CSV::Row object:

source = "Name,Value\nfoo,0\nbar,1\nbaz,2\n"
table = CSV.parse(source, headers: true)
table.by_row! # => #<CSV::Table mode:row row_count:4>
table.each {|row| p row }

Output:

#<CSV::Row "Name":"foo" "Value":"0">
#<CSV::Row "Name":"bar" "Value":"1">
#<CSV::Row "Name":"baz" "Value":"2">

When the access mode is :col, calls the block with each column as a 2-element array containing the header and an Array of column fields:

table.by_col! # => #<CSV::Table mode:col row_count:4>
table.each {|column_data| p column_data }

Output:

["Name", ["foo", "bar", "baz"]]
["Value", ["0", "1", "2"]]

Returns a new Enumerator if no block is given:

table.each # => #<Enumerator: #<CSV::Table mode:col row_count:4>:each>

Matches addr against this entry.

Matches addr against each ACLEntry in this list.

Sends a PATCH request to the path and gets a response, as an HTTPResponse object.

Sends a PROPPATCH request to the path and gets a response, as an HTTPResponse object.

Searches key in id list. The result is returned or yielded if a block is given. If it isn’t found, nil is returned.

Completion for hash key.