Important commands.md

Android :

• Export SHA1 key :

keytool -list -v -keystore ~/.android/debug.keystore -alias androiddebugkey -storepass android -keypass android

For Release mode :
``keytool -list -v -keystore {keystore_name} -alias {alias_name}``

Ref: https://stackoverflow.com/questions/15727912/sha-1-fingerprint-of-keystore-certificate

• List all available tasks for your project in Gradle: gradle tasks

• Verify that your APK is signed: apksigner verify my-app-release.apk

• Run the first Android emulator available: ~/Library/Android/sdk/tools/emulator -avd `~/Library/Android/sdk/tools/emulator -list-avds | awk '{print $1}'`

• Kill adb: adb kill-server.

• Start adb: adb start-server.

• Export adb (MAC):

export PATH=~/Library/Android/sdk/tools:$PATH
export PATH=~/Library/Android/sdk/platform-tools:$PATH

iOS :

Cocoapods:

• Get information on a pod: pod trunk info [pod]

• Verify your local account: pod trunk me

• Deleting the pod: pod trunk delete NAME VERSION

• Push/Update pod to remote repo: pod trunk push PODSPEC

Git:

• Configure GPG Key:

  1. List agg GPG keys:

  gpg --list-secret-keys --keyid-format LONG
  

  2. List all GPG keys for an email:

  gpg --list-secret-keys --keyid-format LONG [email protected]
  

  3. Export a GPG key:

  gpg --armor --export myKey
  

  4. Add a gpg key to git Repo.:

  git config user.signingkey myKey
  

  5. Add GPG key to an Email and Git name of a single Repo

  git config user.email "[email protected]"
  git config user.name "gitName"
  

  6. Sign All comits of a Repo:

  git config commit.gpgsign true
  

  7. Add GPG key to an Email and Git name to all Repos (Global configuration):

  git config --global user.email "[email protected]"
  git config --global user.name "gitName"
  

• Push with detach HEAD mode: git push origin HEAD:remote-branch-name

• Delete all remote tags: git tag -l | xargs -n 1 git push --delete origin

• Delete all local tags: git tag | xargs git tag -d

• Create Empty branch :

  git checkout --orphan <branchname>
  // This will create a new branch with no parents. Then, you can clear the working directory with
  git rm --cached -r .
  // And then you just commit branch with empty commit and then push
  git commit -m <commit message> --allow-empty
  git push origin <newbranch>
  

Ref: https://stackoverflow.com/questions/13969050/how-to-create-a-new-empty-branch-for-a-new-project

• To rebase all commits made since branching out from master you might use the following command:

  git rebase -i
  git merge-base HEAD master
  

  Ref: https://stackoverflow.com/questions/43978823/how-to-squash-commits-in-one-branch

• How to get (only) author name or email for a given SHA1:

    // You can use the following command:
    git log --format='%ae' HASH^!
	// You need to include -s to suppress the diff.
    git show -s --format='%ae' HASH

Ref: https://stackoverflow.com/questions/29876342/how-to-get-only-author-name-or-email-in-git-given-sha1

Base64 Encoding/Decoding:

• Convert file to base64 string: cat myfile.txt | base64

• Convert base64 string into a file: echo $MYFILE | base64 -D > /any/path/myfile.txt echo "Base64String" | base64 -D > downloads/myFile.txt

  gem uninstall fastlane gem install fastlane -v 2.110.0

Read me:

• Link to a section in the read me:

  // For the section:
  ## <a name="abcde">Heading One</a>
  // Link to the section:
  [link text](#abcde)
  

  Ref: https://stackoverflow.com/a/6494918/6927433

References:

1. https://www.makeareadme.com/

Docker:

• List all containers: docker ps -a

• Delete container: docker rm e5d container_name