Folders are created every time I (re)boot.

They have the format below: (the time will always vary)

.mozilla_2019_01_08_08:02

.mozilla_2019_01_09_20:16

.mozilla_2019_01_10_01:16

.mozilla_2019_01_10_18:12

Here, I want to be able to delete the folder .mozilla_2019_01_10_18:12 when it is created as an earlier one already exists on ..._2019_01_10. Better would be to stop it being created, i.e. if one has already been created that day.

I can't use cron @daily or specific times as I never know how often or when the computer will be (re)booted.

How can I do this in an existing script please?

Here is my script:

##!/bin/bash

##

# COPY .mozilla FOLDER AND LEAVE LAST 10 COPIES (1 per day?)

#                                                                                                                

sleep 30

#  

if [ -e /home/david/nas-backups/mozilla/ ]

  then

    cp -a /home/david/.mozilla /home/david/nas-backups/mozilla/

    mv /home/david/nas-backups/mozilla/.mozilla /home/david/nas-backups

    /mozilla/backups/.mozilla_$(date +%Y_%m_%d_%H:%M)



# Show result of copy message

    export DISPLAY=:0 && zenity --info --title "Backup Information Box"

    --text=".mozilla Backup Finished



    Backed up to:

    /nas-backups/mozilla/backups/" --width=600 --height=200



## Working on how to keep only first copy per day ##



# Limit to last 10 alphabetical copies (courtesy of @Vijay)

    cd ~/nas-backups/mozilla/backups

    total=$(ls -1A|wc -l); remove=$((total - 10)); rm -rv $(ls -1vA|head

   -n $remove)





# Show folder so I can manually delete extra daily copies

    nautilus /home/david/nas-backups/mozilla/backups



else



    export DISPLAY=:0 && zenity --info --title "Backup Information Box"

    --text=".mozilla backup FAILED



    - nas-backups either not mounted or not availeble" --width=450

    --height=150

fi

One backup per day: Don't create more backups if one exists for today

Add a condition that checks if a backup folder for today does not exist. If there is no folder for today then only the cp and mv will be executed.

Note the * at the end of the second folder check. This allows for the time stamp at the end of the folder name, as you have done.

Here is the code fragment:

##!/bin/bash

if [ -d /home/david/nas-backups/mozilla/ ]

  then

  if [ ! -d /home/david/nas-backups/mozilla/backups/.mozilla_"$(date +%Y_%m_%d)"* ]

    then

      echo "No backups found for today: Making one"

      cp -a /home/david/.mozilla ~/nas-backups/mozilla/

      mv /home/david/nas-backups/mozilla/.mozilla ~/nas-backups/mozilla/backups/.mozilla_$(date +%Y_%m_%d_%H:%M)

    else

      echo "Backup folder for today exists. No backups will be made today"

  fi

fi

Hope this helps