Search a folder hierarchy for filename(s) that meet a desired criteria.
Primaries
Bro pages are a highly readable supplement to man pages. Bro pages show concise, common-case examples for Unix commands. Bro pages show concise, common-case examples for Unix commands. The examples are submitted by the user base, and can be voted up or down; the best entries are what people see first when they look up a command. If you are installing your own tools then possibly man.conf may need to be configured with your installation prefix. If you have duplicate tools installed then the manual for the command first in your PATH is presented. You can read another manual by pointing man to the directory in which that man page resides. Man -M /path/to/share/man COMMAND.
Pages is a free application that comes pre-installed on macOS. Unless you removed the app, double-clicking any file that ends with the '.pages' file extension should automatically display the file in Pages. If the file opens in a different app, right-click the file name, select Open With, and then choose Pages. BTW: a file that ends in.man may just be a text file containing instructions, man-files end in.1 '¦.8 (indicating the section (1: user programs, 3: programming interfaces, 5: config file formats).
All primaries which take a numeric argument allow the number to be preceded by a plus sign ('+') or a minus sign ('-'). A preceding plus sign means 'more than n', a preceding minus sign means 'less than n' and neither means 'exactly n'.
Operators
The primaries can be combined using the following operators. The operators are listed in order of decreasing precedence.
Bugs
The special characters used by find are also special characters to many shell programs. In particular, the characters *, [, ], ?, (, ), !, and ; might have to be escaped from the shell.
As there is no delimiter separating options and file names or file names and the expression, it is difficult to specify files named -xdev or !. These problems are handled by the -f option and the getopt(3) -- construct.
The -delete primary does not interact well with other options that cause the filesystem tree traversal options to be changed.
EXAMPLES
Print a list of all the files whose names do not end in .c.
$ find / ! -name '*.c' -print
Print a list of all the files owned by user 'wnj' that are newer than the file ttt.
$ find / -newer ttt -user wnj -print
Print out a list of all the files which are not both newer than ttt and owned by 'simon'.
$ find / ! ( -newer ttt -user simon ) -print
Print a list of all the files that are either owned by 'simon' or that are newer than ttt.
$ find / ( -newer ttt -or -user simon ) -print
Print out a list of all the files whose inode change time is more recent than the current time minus one minute:
$ find . -newerct '1 minute ago' -print
List filenames ending in .mp3, searching in the current folder and all subfolders:
$ find . -name '*.mp3'
List filenames matching the name Alice or ALICE (case insensitive), search in the current folder (.) and all subfolders:
$ find . -iname 'alice' -print0
List filenames matching the name Alice or ALICE (case insensitive), search in the current folder (.) only:
$ find . -maxdepth 1 -iname 'alice' -print0
List filenames ending in .mp3, searching in the music folder and subfolders:
$ find ./music -name '*.mp3'
List files with the exact name: Sales_document.doc in ./work and subfolders:
$ find ./work -name Sales_document.doc
List all the file links:
$ find . -type l
List all files that belong to the user Maude:
$ find . -user Maude -print0
List all files (and subdirectories) in your home directory:
$ find $HOME
List all files in sub-directories (but not the directory names)
$ find . -type f
List all the directory and sub-directory names:
$ find . -type d
List all the empty directories:
$ find . -type d -empty
Delete all empty directories, this will recurse the tree:
$ find . -type d -empty -delete
Search for every .app file (application package) including those not in the applications folder:
$ sudo find / -iname *.app
Apple System Information will have more details: version, and where the app was obtained from.
Find files that are over a gigabyte in size:
$ find ~/Movies -size +1024M
Find files that are over 1 GB but less than 20 GB in size:
$ find ~/Movies -size +1024M -size -20480M -print0
Find all .DS_Store files in the current directory (.) and its subdirectories and DELETE them:
$ find . -name '*.DS_Store' -type f -delete
Find all .gif files, pipe to xargs to get the size and then pipe into tail to display only the grand total:
$ find . -iname '*.gif' -print0 | xargs -0 du -ch | tail -1
Find files have been modified within the last day:
$ find ~/Movies -mtime -1
Find files have been modified within the last 30 minutes:
$ find ~/Movies -mmin -30
Find .doc files that also start with 'questionnaire' (AND)
$ find . -name '*.doc' -name questionnaire*
List all files beginning with 'memo' and owned by Maude (AND)
$ find . -name 'memo*' -user Maude
Find .doc files that do NOT start with 'Accounts' (NOT)
$ find . -name '*.doc' ! -name Accounts*
Find files named 'secrets' in or below the directory /tmp and delete them. Note that this will work incorrectly if there are any filenames containing newlines, single or double quotes, or spaces:
$ find /tmp -name secrets -type f -print | xargs /bin/rm -f
Find files named 'secrets' in or below the directory /tmp and delete them, processing filenames in such a way that file or directory names containing single or double quotes, spaces or newlines are correctly handled. The -name test comes before the -type test in order to avoid having to call stat on every file.
$ find /tmp -name secrets -type f -print0 | xargs -0 /bin/rm -f
Run 'myapp' on every file in or below the current directory. Notice that the braces are enclosed in single quote marks to protect them from interpretation as shell script punctuation. The semicolon is similarly protected by the use of a backslash, though ';' could have been used in that case also.
find . -type f -exec myapp '{}' ;
Traverse the filesystem just once, listing setuid files and directories into /root/suid.txt and large files into /root/big.txt.
find / ( -perm -4000 -fprintf /root/suid.txt '%#m %u %pn' ) ,
( -size +100M -fprintf /root/big.txt '%-10s %pn' )
Search for files in your home directory which have been modified in the last twenty-four hours. This command works this way because the time since each file was last modified is divided by 24 hours and any remainder is discarded. That means that to match -mtime 0, a file will have to have a modification in the past which is less than 24 hours ago.
find $HOME -mtime 0
Search for files which have read and write permission for their owner, and group, but which other users can read but not write to (664). Files which meet these criteria but have other permissions bits set (for example if someone can execute the file) will not be matched.
find . -perm 664
Search for files which have read and write permission for their owner and group, and which other users can read, without regard to the presence of any extra permission bits (for example the executable bit). This will match a file which has mode 0777, for example.
find . -perm -664
Search for files which are writable by somebody (their owner, or their group, or anybody else).
find . -perm /222
“We all have different desires and needs, but if we don't discover what we want from ourselves and what we stand for, we will live passively and unfulfilled” ~ Bill Watterson
Related macOS commands:
grep - Search file(s) for lines that match a given pattern.
ln - Make links between files (hard links, symbolic links).
ls - List information about file(s).
locate - Find files.
mdfind - Spotlight search.
rm - Remove files.
whereis - Locate a command.
which - Locate a program file in the user's path.
Some rights reserved
Estimated reading time: 16 minutes
Welcome to Docker Desktop! The Docker Desktop for Mac user manual provides information on how to configure and manage your Docker Desktop settings.
For information about Docker Desktop download, system requirements, and installation instructions, see Install Docker Desktop.
Preferences
The Docker Preferences menu allows you to configure your Docker settings such as installation, updates, version channels, Docker Hub login,and more.
Choose the Docker menu > Preferences from themenu bar and configure the runtime options described below.
General
On the General tab, you can configure when to start and update Docker:
Start Docker Desktop when you log in: Automatically starts Docker Desktop when you open your session.
Include VM in Time Machine backups: Select this option to back up the Docker Desktop virtual machine. This option is disabled by default.
Securely store Docker logins in macOS keychain: Docker Desktop stores your Docker login credentials in macOS keychain by default.
Send usage statistics: Docker Desktop sends diagnostics, crash reports, and usage data. This information helps Docker improve and troubleshoot the application. Clear the check box to opt out.
Resources
The Resources tab allows you to configure CPU, memory, disk, proxies, network, and other resources.
Advanced
On the Advanced tab, you can limit resources available to Docker.
Advanced settings are:
CPUs: By default, Docker Desktop is set to use half the number of processorsavailable on the host machine. To increase processing power, set this to ahigher number; to decrease, lower the number.
Memory: By default, Docker Desktop is set to use 2
GB runtime memory,allocated from the total available memory on your Mac. To increase the RAM, set this to a higher number. To decrease it, lower the number.
Swap: Configure swap file size as needed. The default is 1 GB.
Disk image size: Specify the size of the disk image.
Disk image location: Specify the location of the Linux volume where containers and images are stored.
You can also move the disk image to a different location. If you attempt to move a disk image to a location that already has one, you get a prompt asking if you want to use the existing image or replace it.
File sharing
Use File sharing to allow local directories on the Mac to be shared with Linux containers.This is especially useful forediting source code in an IDE on the host while running and testing the code in a container.By default the /Users
, /Volume
, /private
, /tmp
and /var/folders
directory are shared. If your project is outside this directory then it must be addedto the list. Otherwise you may get Mounts denied
or cannot start service
errors at runtime.
File share settings are:
Add a Directory: Click
+
and navigate to the directory you want to add.Apply & Restart makes the directory available to containers using Docker’sbind mount (
-v
) feature.
Tips on shared folders, permissions, and volume mounts
Share only the directories that you need with the container. File sharing introduces overhead as any changes to the files on the host need to be notified to the Linux VM. Sharing too many files can lead to high CPU load and slow filesystem performance.
Shared folders are designed to allow application code to be edited on the host while being executed in containers. For non-code items such as cache directories or databases, the performance will be much better if they are stored in the Linux VM, using a data volume (named volume) or data container.
If you share the whole of your home directory into a container, MacOS may prompt you to give Docker access to personal areas of your home directory such as your Reminders or Downloads.
By default, Mac file systems are case-insensitive while Linux is case-sensitive. On Linux, it is possible to create 2 separate files:
test
andTest
, while on Mac these filenames would actually refer to the same underlying file. This can lead to problems where an app works correctly on a Mac (where the file contents are shared) but fails when run in Linux in production (where the file contents are distinct). To avoid this, Docker Desktop insists that all shared files are accessed as their original case. Therefore, if a file is created calledtest
, it must be opened astest
. Attempts to openTest
will fail with the errorNo such file or directory
. Similarly, once a file calledtest
is created, attempts to create a second file calledTest
will fail. For more information, see Volume mounting requires file sharing for any project directories outside of/Users
.)
Proxies
Docker Desktop detects HTTP/HTTPS Proxy Settings from macOS and automaticallypropagates these to Docker. For example, if you set yourproxy settings to http://proxy.example.com
, Docker uses this proxy whenpulling containers.
Your proxy settings, however, will not be propagated into the containers you start.If you wish to set the proxy settings for your containers, you need to defineenvironment variables for them, just like you would do on Linux, for example:
For more information on setting environment variables for running containers,see Set environment variables.
Network
You can configure Docker Desktop networking to work on a virtual private network (VPN). Specify a network address translation (NAT) prefix and subnet mask to enable Internet connectivity.
Docker Engine
The Docker Engine page allows you to configure the Docker daemon to determine how your containers run.
Type a JSON configuration file in the box to configure the daemon settings. For a full list of options, see the Docker Enginedockerd commandline reference.
Click Apply & Restart to save your settings and restart Docker Desktop.
Command Line
On the Command Line page, you can specify whether or not to enable experimental features.
Experimental features provide early access to future product functionality.These features are intended for testing and feedback only as they may changebetween releases without warning or can be removed entirely from a futurerelease. Experimental features must not be used in production environments.Docker does not offer support for experimental features.
To enable experimental features in the Docker CLI, edit the config.json
file and set experimental
to enabled.
To enable experimental features from the Docker Desktop menu, clickSettings (Preferences on macOS) > Command Line and then turn onthe Enable experimental features toggle. Click Apply & Restart.
For a list of current experimental features in the Docker CLI, see Docker CLI Experimental features.
You can toggle the experimental features on and off in Docker Desktop. If you toggle the experimental features off, Docker Desktop uses the current generally available release of Docker Engine.
You can see whether you are running experimental mode at the command line. IfExperimental
is true
, then Docker is running in experimental mode, as shownhere. (If false
, Experimental mode is off.)
Kubernetes
Docker Desktop includes a standalone Kubernetes server that runs on your Mac, sothat you can test deploying your Docker workloads on Kubernetes.
The Kubernetes client command, kubectl
, is included and configured to connectto the local Kubernetes server. If you have kubectl
already installed andpointing to some other environment, such as minikube
or a GKE cluster, be sureto change context so that kubectl
is pointing to docker-desktop
:
If you installed kubectl
with Homebrew, or by some other method, andexperience conflicts, remove /usr/local/bin/kubectl
.
To enable Kubernetes support and install a standalone instance of Kubernetesrunning as a Docker container, select Enable Kubernetes. To set Kubernetes as thedefault orchestrator, select Deploy Docker Stacks to Kubernetes by default.
Click Apply & Restart to save the settings. This instantiates images required to run the Kubernetes server as containers, and installs the
/usr/local/bin/kubectl
command on your Mac.When Kubernetes is enabled and running, an additional status bar item displaysat the bottom right of the Docker Desktop Settings dialog.
The status of Kubernetes shows in the Docker menu and the context points to
docker-desktop
.By default, Kubernetes containers are hidden from commands like
dockerservice ls
, because managing them manually is not supported. To make themvisible, select Show system containers (advanced) and click Apply andRestart. Most users do not need this option.To disable Kubernetes support at any time, clear the Enable Kubernetes check box. TheKubernetes containers are stopped and removed, and the
/usr/local/bin/kubectl
command is removed.For more about using the Kubernetes integration with Docker Desktop, seeDeploy on Kubernetes.
Reset
Reset and Restart options
On Docker Desktop Mac, the Restart Docker Desktop, Reset to factory defaults, and other reset options are available from the Troubleshoot menu.
For information about the reset options, see Logs and Troubleshooting.
Dashboard
The Docker Desktop Dashboard enables you to interact with containers and applications and manage the lifecycle of your applications directly from your machine. The Dashboard UI shows all running, stopped, and started containers with their state. It provides an intuitive interface to perform common actions to inspect and manage containers and existing Docker Compose applications. For more information, see Docker Desktop Dashboard.
Add TLS certificates
Macos Man Pages Locations
You can add trusted Certificate Authorities (CAs) (used to verify registryserver certificates) and client certificates (used to authenticate toregistries) to your Docker daemon.
Add custom CA certificates (server side)
All trusted CAs (root or intermediate) are supported. Docker Desktop creates acertificate bundle of all user-trusted CAs based on the Mac Keychain, andappends it to Moby trusted certificates. So if an enterprise SSL certificate istrusted by the user on the host, it is trusted by Docker Desktop.
To manually add a custom, self-signed certificate, start by adding thecertificate to the macOS keychain, which is picked up by Docker Desktop. Here isan example:
Or, if you prefer to add the certificate to your own local keychain only (ratherthan for all users), run this command instead:
Macos Man Pages
See also, Directory structures forcertificates.
Note: You need to restart Docker Desktop after making any changes to thekeychain or to the ~/.docker/certs.d
directory in order for the changes totake effect.
For a complete explanation of how to do this, see the blog post AddingSelf-signed Registry Certs to Docker & Docker Desktop forMac.
Add client certificates
You can put your client certificates in~/.docker/certs.d/<MyRegistry>:<Port>/client.cert
and~/.docker/certs.d/<MyRegistry>:<Port>/client.key
.
When the Docker Desktop application starts, it copies the ~/.docker/certs.d
folder on your Mac to the /etc/docker/certs.d
directory on Moby (the DockerDesktop xhyve
virtual machine).
You need to restart Docker Desktop after making any changes to the keychainor to the
~/.docker/certs.d
directory in order for the changes to takeeffect.The registry cannot be listed as an insecure registry (see DockerEngine. Docker Desktop ignores certificates listedunder insecure registries, and does not send client certificates. Commandslike
docker run
that attempt to pull from the registry produce errormessages on the command line, as well as on the registry.
Directory structures for certificates
If you have this directory structure, you do not need to manually add the CAcertificate to your Mac OS system login:
The following further illustrates and explains a configuration with customcertificates:
You can also have this directory structure, as long as the CA certificate isalso in your keychain.
To learn more about how to install a CA root certificate for the registry andhow to set the client TLS certificate for verification, seeVerify repository client with certificatesin the Docker Engine topics.
Install shell completion
Docker Desktop comes with scripts to enable completion for the docker
and docker-compose
commands. The completion scripts may befound inside Docker.app
, in the Contents/Resources/etc/
directory and can beinstalled both in Bash and Zsh.
Bash
Bash has built-in support forcompletion To activate completion for Docker commands, these files need to becopied or symlinked to your bash_completion.d/
directory. For example, if youinstalled bash via Homebrew:
Add the following to your ~/.bash_profile
:
OR
Zsh
In Zsh, the completionsystemtakes care of things. To activate completion for Docker commands,these files need to be copied or symlinked to your Zsh site-functions/
directory. For example, if you installed Zsh via Homebrew:
Fish-Shell
Fish-shell also supports tab completion completionsystem. To activate completion for Docker commands,these files need to be copied or symlinked to your Fish-shell completions/
directory.
Create the completions
directory:
Now add fish completions from docker.
Give feedback and get help
To get help from the community, review current user topics, join or start adiscussion, log on to our Docker Desktop for Macforum.
To report bugs or problems, log on to Docker Desktop for Mac issues onGitHub,where you can review community reported issues, and file new ones. SeeLogs and Troubleshooting for more details.
Pages Macos Big Sur
For information about providing feedback on the documentation or update it yourself, see Contribute to documentation.
Docker Hub
Select Sign in /Create Docker ID from the Docker Desktop menu to access your Docker Hub account. Once logged in, you can access your Docker Hub repositories and organizations directly from the Docker Desktop menu.
For more information, refer to the following Docker Hub topics:
Two-factor authentication
Docker Desktop enables you to sign into Docker Hub using two-factor authentication. Two-factor authentication provides an extra layer of security when accessing your Docker Hub account.
You must enable two-factor authentication in Docker Hub before signing into your Docker Hub account through Docker Desktop. For instructions, see Enable two-factor authentication for Docker Hub.
After you have enabled two-factor authentication:
Go to the Docker Desktop menu and then select Sign in / Create Docker ID.
Enter your Docker ID and password and click Sign in.
After you have successfully signed in, Docker Desktop prompts you to enter the authentication code. Enter the six-digit code from your phone and then click Verify.
After you have successfully authenticated, you can access your organizations and repositories directly from the Docker Desktop menu.
Where to go next
Try out the walkthrough at Get Started.
Dig in deeper with Docker Labs examplewalkthroughs and source code.
For a summary of Docker command line interface (CLI) commands, seeDocker CLI Reference Guide.
Check out the blog post, What’s New in Docker 17.06 Community Edition(CE).