For Signing aab file, you can use the following commands:

Jarsigner:  

jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore $YOUR-KEY-STORE-PATH $UNSIGN-APK-PATH $ALIAS-NAME


Jarsigner Verification: 

jarsigner -verify -verbose -certs $UNSIGN-APK-PATH


zipalign: 

zipalign -v -p -f 4 $UNSIGN-APK-PATH $OUTPUT-APK-PATH

For Signing apk file, you can use the following commands: 


zipalign:

zipalign -v -p -f 4 $UNSIGN-APK-PATH $ ZIP_ALIGNED_APK_PATH


apksigner:

apksigner sign --ks=YOUR_KEY_STORE_PATH --ks-key-alias=YOUR_ALIAS_NAME --ks-pass=pass:ALIAS_PASSWORD --key-pass=pass:KEY_PASSWORD --out $OUTPUT_APK_PATH $ZIP_ALIGNED_APK_PATH