FileUtils

Changes the current working directory of the process to the given string path.

require "file_utils"

FileUtils.cd("/tmp")

NOTE: Alias of Dir.cd

Changes the current working directory of the process to the given string path and invoked the block, restoring the original working directory when the block exits.

require "file_utils"

FileUtils.cd("/tmp") { Dir.current } # => "/tmp"

NOTE: Alias of Dir.cd with block

Compares two files filename1 to filename2 to determine if they are identical. Returns true if content are the same, false otherwise.

require "file_utils"

File.write("file.cr", "1")
File.write("bar.cr", "1")
FileUtils.cmp("file.cr", "bar.cr") # => true

NOTE: Alias of File.same_content?

Copies the file src_path to the file or directory dest. If dest is a directory, a file with the same basename as src_path is created in dest Permission bits are copied too.

require "file_utils"

File.touch("afile")
File.chmod("afile", 0o600)
FileUtils.cp("afile", "afile_copy")
File.info("afile_copy").permissions.value # => 0o600

Copies a list of files src to dest. dest must be an existing directory.

require "file_utils"

Dir.mkdir("files")
FileUtils.cp({"bar.cr", "afile"}, "files")

Copies a file or directory src_path to dest_path. If src_path is a directory, this method copies all its contents recursively. If dest is a directory, copies src to dest/src.

require "file_utils"

FileUtils.cp_r("files", "dir")

Creates a hard link dest_path which points to src_path. If dest_path already exists and is a directory, creates a link dest_path/src_path.

require "file_utils"

# Create a hard link, pointing from /usr/bin/emacs to /usr/bin/vim
FileUtils.ln("/usr/bin/vim", "/usr/bin/emacs")
# Create a hard link, pointing from /tmp/foo.c to foo.c
FileUtils.ln("foo.c", "/tmp")

Creates a hard link to each path in src_paths inside the dest_dir directory. If dest_dir is not a directory, raises an ArgumentError.

require "file_utils"

# Create /usr/bin/vim, /usr/bin/emacs, and /usr/bin/nano as hard links
FileUtils.ln(["vim", "emacs", "nano"], "/usr/bin")

Creates a symbolic link dest_path which points to src_path. If dest_path already exists and is a directory, creates a link dest_path/src_path.

require "file_utils"

# Create a symbolic link pointing from logs to /var/log
FileUtils.ln_s("/var/log", "logs")
# Create a symbolic link pointing from /tmp/src to src
FileUtils.ln_s("src", "/tmp")

Creates a symbolic link to each path in src_paths inside the dest_dir directory. If dest_dir is not a directory, raises an ArgumentError.

require "file_utils"

# Create symbolic links in src/ pointing to every .c file in the current directory
FileUtils.ln_s(Dir["*.c"], "src")

Like #ln_s(Path | String, Path | String), but overwrites dest_path if it exists and is not a directory or if dest_path/src_path exists.

require "file_utils"

# Create a symbolic link pointing from bar.c to foo.c, even if bar.c already exists
FileUtils.ln_sf("foo.c", "bar.c")

Creates a symbolic link to each path in src_paths inside the dest_dir directory, ignoring any overwritten paths.

If dest_dir is not a directory, raises an ArgumentError.

require "file_utils"

# Create symbolic links in src/ pointing to every .c file in the current directory,
# even if it means overwriting files in src/
FileUtils.ln_sf(Dir["*.c"], "src")

Creates a new directory at the given path. The linux-style permission mode can be specified, with a default of 777 (0o777).

require "file_utils"

FileUtils.mkdir("src")

NOTE: Alias of Dir.mkdir

Creates a new directory at the given paths. The linux-style permission mode can be specified, with a default of 777 (0o777).

require "file_utils"

FileUtils.mkdir(["foo", "bar"])

Creates a new directory at the given path, including any non-existing intermediate directories. The linux-style permission mode can be specified, with a default of 777 (0o777).

require "file_utils"

FileUtils.mkdir_p("foo")

NOTE: Alias of Dir.mkdir_p

Creates a new directory at the given paths, including any non-existing intermediate directories. The linux-style permission mode can be specified, with a default of 777 (0o777).

require "file_utils"

FileUtils.mkdir_p(["foo", "bar", "baz", "dir1", "dir2", "dir3"])

Moves src_path to dest_path.

NOTE: If src_path and dest_path exist on different mounted filesystems, the file at src_path is copied to dest_path and then removed.

require "file_utils"

FileUtils.mv("afile", "afile.cr")

Moves every srcs to dest.

require "file_utils"

FileUtils.mv(["foo", "bar"], "src")

Returns the current working directory.

require "file_utils"

FileUtils.pwd

NOTE: Alias of Dir.current

Deletes the path file given, raises if the path does not exist.

require "file_utils"

FileUtils.rm("afile.cr")

NOTE: Alias of File.delete

Deletes all paths files given, raises if any of the paths doesn't exist.

require "file_utils"

FileUtils.rm(["dir/afile", "afile_copy"])

Deletes the given path file, ignoring it if it does not exist.

require "file_utils"

FileUtils.rm_f("afile.cr")

NOTE: Alias of File.delete?

Deletes all paths files given, ignoring non-existing ones.

require "file_utils"

FileUtils.rm_f(["dir/afile", "afile_copy"])

Deletes a file or directory path. If path is a directory, this method removes all its contents recursively.

require "file_utils"

FileUtils.rm_r("dir")
FileUtils.rm_r("file.cr")

Deletes a list of files or directories paths. If one path is a directory, this method removes all its contents recursively.

require "file_utils"

FileUtils.rm_r(["files", "bar.cr"])

Deletes a file or directory path. If path is a directory, this method removes all its contents recursively. Ignores all errors.

require "file_utils"

FileUtils.rm_rf("dir")
FileUtils.rm_rf("file.cr")
FileUtils.rm_rf("non_existent_file")

Deletes a list of files or directories paths. If one path is a directory, this method removes all its contents recursively. Ignores all errors.

require "file_utils"

FileUtils.rm_rf(["dir", "file.cr", "non_existent_file"])

Removes the directory at the given path.

require "file_utils"

FileUtils.rmdir("baz")

NOTE: Alias of Dir.delete

Removes all directories at the given paths.

require "file_utils"

FileUtils.rmdir(["dir1", "dir2", "dir3"])

Attempts to set the access and modification times of the file named in the path parameter to the value given in time.

If the file does not exist, it will be created.

require "file_utils"

FileUtils.touch("afile.cr")

NOTE: Alias of File.touch

Attempts to set the access and modification times of each file given in the paths parameter to the value given in time.

If the file does not exist, it will be created.

require "file_utils"

FileUtils.touch(["foo", "bar"])