Take SnapShot fom all disks on VM

#!/bin/bash
#az snapshot create -n nome -g rg --sku Standard_LRS --source
#storageProfile.[osDisk.[name,managedDisk.[id]],dataDisks[*].[name,managedDisk.[id]]]
#export STRING_OSDISK=storageProfile.osDisk.[name,managedDisk.id]
#export STRING_DATADISK=storageProfile.dataDisks[*].[name,managedDisk.id]
export STRING_OSDISK=storageProfile.osDisk.managedDisk.id
export STRING_DATADISK=storageProfile.dataDisks[*].managedDisk.id
export RG=
export VMNAME=
export SUFIX=


az vm show \
  --name $VMNAME \
  -g $RG \
  -d \
  --query "$STRING_OSDISK" \
  -o tsv | while read  diskid
  do
    name=$(echo $diskid | tr '/' '\n' | tail -n 1)
    echo az snapshot create \
    -n $VMNAME-so-$SUFIX \
    -g $RG \
    --sku Standard_LRS \
    --source $diskid
  done
  az vm show \
    --name $VMNAME \
    -g $RG \
    -d \
    --query "$STRING_DATADISK" \
    -o tsv | while read  diskid
    do
      name=$(echo $diskid | tr '/' '\n' | tail -n 1)
      echo az snapshot create \
      -n $name-$SUFIX \
      -g $RG \
      --sku Standard_LRS \
      --source $diskid
    done