Results for: "fnmatch"

Returns true if the file at path new is newer than all the files at paths in array old_list; false otherwise.

Argument new and the elements of old_list should be interpretable as paths:

FileUtils.uptodate?('Rakefile', ['Gemfile', 'README.md']) # => true
FileUtils.uptodate?('Gemfile', ['Rakefile', 'README.md']) # => false

A non-existent file is considered to be infinitely old.

Related: FileUtils.touch.

Returns true if the file at path new is newer than all the files at paths in array old_list; false otherwise.

Argument new and the elements of old_list should be interpretable as paths:

FileUtils.uptodate?('Rakefile', ['Gemfile', 'README.md']) # => true
FileUtils.uptodate?('Gemfile', ['Rakefile', 'README.md']) # => false

A non-existent file is considered to be infinitely old.

Related: FileUtils.touch.

Changes permissions on the entries at the paths given in list (a single path or an array of paths) to the permissions given by mode; returns list if it is an array, [list] otherwise:

• Modifies each entry that is a regular file using File.chmod.

• Modifies each entry that is a symbolic link using File.lchmod.

Argument list or its elements should be interpretable as paths.

Argument mode may be either an integer or a string:

• Integer mode: represents the permission bits to be set:

  FileUtils.chmod(0755, 'src0.txt')
  FileUtils.chmod(0644, ['src0.txt', 'src0.dat'])
  

• String mode: represents the permissions to be set:

  The string is of the form [targets][[operator][perms[,perms]], where:

  • targets may be any combination of these letters:

    • 'u': permissions apply to the file’s owner.

    • 'g': permissions apply to users in the file’s group.

    • 'o': permissions apply to other users not in the file’s group.

    • 'a' (the default): permissions apply to all users.

  • operator may be one of these letters:

    • '+': adds permissions.

    • '-': removes permissions.

    • '=': sets (replaces) permissions.

  • perms (may be repeated, with separating commas) may be any combination of these letters:

    • 'r': Read.

    • 'w': Write.

    • 'x': Execute (search, for a directory).

    • 'X': Search (for a directories only; must be used with '+')

    • 's': Uid or gid.

    • 't': Sticky bit.

  Examples:

  FileUtils.chmod('u=wrx,go=rx', 'src1.txt')
  FileUtils.chmod('u=wrx,go=rx', '/usr/bin/ruby')
  

Keyword arguments:

• noop: true - does not change permissions; returns nil.

• verbose: true - prints an equivalent command:

  FileUtils.chmod(0755, 'src0.txt', noop: true, verbose: true)
  FileUtils.chmod(0644, ['src0.txt', 'src0.dat'], noop: true, verbose: true)
  FileUtils.chmod('u=wrx,go=rx', 'src1.txt', noop: true, verbose: true)
  FileUtils.chmod('u=wrx,go=rx', '/usr/bin/ruby', noop: true, verbose: true)
  

  Output:

  chmod 755 src0.txt
  chmod 644 src0.txt src0.dat
  chmod u=wrx,go=rx src1.txt
  chmod u=wrx,go=rx /usr/bin/ruby

Related: FileUtils.chmod_R.

Changes permissions on the entries at the paths given in list (a single path or an array of paths) to the permissions given by mode; returns list if it is an array, [list] otherwise:

• Modifies each entry that is a regular file using File.chmod.

• Modifies each entry that is a symbolic link using File.lchmod.

Argument list or its elements should be interpretable as paths.

Argument mode may be either an integer or a string:

• Integer mode: represents the permission bits to be set:

  FileUtils.chmod(0755, 'src0.txt')
  FileUtils.chmod(0644, ['src0.txt', 'src0.dat'])
  

• String mode: represents the permissions to be set:

  The string is of the form [targets][[operator][perms[,perms]], where:

  • targets may be any combination of these letters:

    • 'u': permissions apply to the file’s owner.

    • 'g': permissions apply to users in the file’s group.

    • 'o': permissions apply to other users not in the file’s group.

    • 'a' (the default): permissions apply to all users.

  • operator may be one of these letters:

    • '+': adds permissions.

    • '-': removes permissions.

    • '=': sets (replaces) permissions.

  • perms (may be repeated, with separating commas) may be any combination of these letters:

    • 'r': Read.

    • 'w': Write.

    • 'x': Execute (search, for a directory).

    • 'X': Search (for a directories only; must be used with '+')

    • 's': Uid or gid.

    • 't': Sticky bit.

  Examples:

  FileUtils.chmod('u=wrx,go=rx', 'src1.txt')
  FileUtils.chmod('u=wrx,go=rx', '/usr/bin/ruby')
  

Keyword arguments:

• noop: true - does not change permissions; returns nil.

• verbose: true - prints an equivalent command:

  FileUtils.chmod(0755, 'src0.txt', noop: true, verbose: true)
  FileUtils.chmod(0644, ['src0.txt', 'src0.dat'], noop: true, verbose: true)
  FileUtils.chmod('u=wrx,go=rx', 'src1.txt', noop: true, verbose: true)
  FileUtils.chmod('u=wrx,go=rx', '/usr/bin/ruby', noop: true, verbose: true)
  

  Output:

  chmod 755 src0.txt
  chmod 644 src0.txt src0.dat
  chmod u=wrx,go=rx src1.txt
  chmod u=wrx,go=rx /usr/bin/ruby

Related: FileUtils.chmod_R.

Like FileUtils.chmod, but changes permissions recursively.

Like FileUtils.chmod, but changes permissions recursively.

Changes the owner and group on the entries at the paths given in list (a single path or an array of paths) to the given user and group; returns list if it is an array, [list] otherwise:

• Modifies each entry that is a regular file using File.chown.

• Modifies each entry that is a symbolic link using File.lchown.

Argument list or its elements should be interpretable as paths.

User and group:

• Argument user may be a user name or a user id; if nil or -1, the user is not changed.

• Argument group may be a group name or a group id; if nil or -1, the group is not changed.

• The user must be a member of the group.

Examples:

# One path.
# User and group as string names.
File.stat('src0.txt').uid # => 1004
File.stat('src0.txt').gid # => 1004
FileUtils.chown('user2', 'group1', 'src0.txt')
File.stat('src0.txt').uid # => 1006
File.stat('src0.txt').gid # => 1005

# User and group as uid and gid.
FileUtils.chown(1004, 1004, 'src0.txt')
File.stat('src0.txt').uid # => 1004
File.stat('src0.txt').gid # => 1004

# Array of paths.
FileUtils.chown(1006, 1005, ['src0.txt', 'src0.dat'])

# Directory (not recursive).
FileUtils.chown('user2', 'group1', '.')

Keyword arguments:

• noop: true - does not change permissions; returns nil.

• verbose: true - prints an equivalent command:

  FileUtils.chown('user2', 'group1', 'src0.txt', noop: true, verbose: true)
  FileUtils.chown(1004, 1004, 'src0.txt', noop: true, verbose: true)
  FileUtils.chown(1006, 1005, ['src0.txt', 'src0.dat'], noop: true, verbose: true)
  FileUtils.chown('user2', 'group1', path, noop: true, verbose: true)
  FileUtils.chown('user2', 'group1', '.', noop: true, verbose: true)
  

  Output:

  chown user2:group1 src0.txt
  chown 1004:1004 src0.txt
  chown 1006:1005 src0.txt src0.dat
  chown user2:group1 src0.txt
  chown user2:group1 .

Related: FileUtils.chown_R.

Changes the owner and group on the entries at the paths given in list (a single path or an array of paths) to the given user and group; returns list if it is an array, [list] otherwise:

• Modifies each entry that is a regular file using File.chown.

• Modifies each entry that is a symbolic link using File.lchown.

Argument list or its elements should be interpretable as paths.

User and group:

• Argument user may be a user name or a user id; if nil or -1, the user is not changed.

• Argument group may be a group name or a group id; if nil or -1, the group is not changed.

• The user must be a member of the group.

Examples:

# One path.
# User and group as string names.
File.stat('src0.txt').uid # => 1004
File.stat('src0.txt').gid # => 1004
FileUtils.chown('user2', 'group1', 'src0.txt')
File.stat('src0.txt').uid # => 1006
File.stat('src0.txt').gid # => 1005

# User and group as uid and gid.
FileUtils.chown(1004, 1004, 'src0.txt')
File.stat('src0.txt').uid # => 1004
File.stat('src0.txt').gid # => 1004

# Array of paths.
FileUtils.chown(1006, 1005, ['src0.txt', 'src0.dat'])

# Directory (not recursive).
FileUtils.chown('user2', 'group1', '.')

Keyword arguments:

• noop: true - does not change permissions; returns nil.

• verbose: true - prints an equivalent command:

  FileUtils.chown('user2', 'group1', 'src0.txt', noop: true, verbose: true)
  FileUtils.chown(1004, 1004, 'src0.txt', noop: true, verbose: true)
  FileUtils.chown(1006, 1005, ['src0.txt', 'src0.dat'], noop: true, verbose: true)
  FileUtils.chown('user2', 'group1', path, noop: true, verbose: true)
  FileUtils.chown('user2', 'group1', '.', noop: true, verbose: true)
  

  Output:

  chown user2:group1 src0.txt
  chown 1004:1004 src0.txt
  chown 1006:1005 src0.txt src0.dat
  chown user2:group1 src0.txt
  chown user2:group1 .

Related: FileUtils.chown_R.

Like FileUtils.chown, but changes owner and group recursively.

Like FileUtils.chown, but changes owner and group recursively.

Updates modification times (mtime) and access times (atime) of the entries given by the paths in list (a single path or an array of paths); returns list if it is an array, [list] otherwise.

By default, creates an empty file for any path to a non-existent entry; use keyword argument nocreate to raise an exception instead.

Argument list or its elements should be interpretable as paths.

Examples:

# Single path.
f = File.new('src0.txt') # Existing file.
f.atime # => 2022-06-10 11:11:21.200277 -0700
f.mtime # => 2022-06-10 11:11:21.200277 -0700
FileUtils.touch('src0.txt')
f = File.new('src0.txt')
f.atime # => 2022-06-11 08:28:09.8185343 -0700
f.mtime # => 2022-06-11 08:28:09.8185343 -0700

# Array of paths.
FileUtils.touch(['src0.txt', 'src0.dat'])

Keyword arguments:

• mtime: time - sets the entry’s mtime to the given time, instead of the current time.

• nocreate: true - raises an exception if the entry does not exist.

• noop: true - does not touch entries; returns nil.

• verbose: true - prints an equivalent command:

  FileUtils.touch('src0.txt', noop: true, verbose: true)
  FileUtils.touch(['src0.txt', 'src0.dat'], noop: true, verbose: true)
  FileUtils.touch(path, noop: true, verbose: true)
  

  Output:

  touch src0.txt
  touch src0.txt src0.dat
  touch src0.txt
  

Related: FileUtils.uptodate?.

Updates modification times (mtime) and access times (atime) of the entries given by the paths in list (a single path or an array of paths); returns list if it is an array, [list] otherwise.

By default, creates an empty file for any path to a non-existent entry; use keyword argument nocreate to raise an exception instead.

Argument list or its elements should be interpretable as paths.

Examples:

# Single path.
f = File.new('src0.txt') # Existing file.
f.atime # => 2022-06-10 11:11:21.200277 -0700
f.mtime # => 2022-06-10 11:11:21.200277 -0700
FileUtils.touch('src0.txt')
f = File.new('src0.txt')
f.atime # => 2022-06-11 08:28:09.8185343 -0700
f.mtime # => 2022-06-11 08:28:09.8185343 -0700

# Array of paths.
FileUtils.touch(['src0.txt', 'src0.dat'])

Keyword arguments:

• mtime: time - sets the entry’s mtime to the given time, instead of the current time.

• nocreate: true - raises an exception if the entry does not exist.

• noop: true - does not touch entries; returns nil.

• verbose: true - prints an equivalent command:

  FileUtils.touch('src0.txt', noop: true, verbose: true)
  FileUtils.touch(['src0.txt', 'src0.dat'], noop: true, verbose: true)
  FileUtils.touch(path, noop: true, verbose: true)
  

  Output:

  touch src0.txt
  touch src0.txt src0.dat
  touch src0.txt
  

Related: FileUtils.uptodate?.

Returns an array of the string names of FileUtils methods that accept one or more keyword arguments:

FileUtils.commands.sort.take(3) # => ["cd", "chdir", "chmod"]

Returns the arc tangent of y and x in radians.

• Domain of y: [-INFINITY, INFINITY].

• Domain of x: [-INFINITY, INFINITY].

• Range: [-PI, PI].

Examples:

atan2(-1.0, -1.0) # => -2.356194490192345  # -3*PI/4
atan2(-1.0, 0.0)  # => -1.5707963267948966 # -PI/2
atan2(-1.0, 1.0)  # => -0.7853981633974483 # -PI/4
atan2(0.0, -1.0)  # => 3.141592653589793   # PI

Returns the arc tangent of x.

• Domain: [-INFINITY, INFINITY].

• Range: [-PI/2, PI/2] .

Examples:

atan(-INFINITY) # => -1.5707963267948966 # -PI2
atan(-PI)       # => -1.2626272556789115
atan(-PI/2)     # => -1.0038848218538872
atan(0.0)       # => 0.0
atan(PI/2)      # => 1.0038848218538872
atan(PI)        # => 1.2626272556789115
atan(INFINITY)  # => 1.5707963267948966  # PI/2

Returns the inverse hyperbolic tangent of x.

• Domain: [-1, 1].

• Range: [-INFINITY, INFINITY].

Examples:

atanh(-1.0) # => -Infinity
atanh(0.0)  # => 0.0
atanh(1.0)  # => Infinity

Returns the value of the gamma function for x.

• Domain: (-INFINITY, INFINITY] excluding negative integers.

• Range: [-INFINITY, INFINITY].

Examples:

gamma(-2.5)      # => -0.9453087204829431
gamma(-1.5)      # => 2.3632718012073513
gamma(-0.5)      # => -3.5449077018110375
gamma(0.0)      # => Infinity
gamma(1.0)      # => 1.0
gamma(2.0)      # => 1.0
gamma(3.0)      # => 2.0
gamma(4.0)      # => 6.0
gamma(5.0)      # => 24.0

Related: Math.lgamma.