AWS S3 backup script

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Start with updating AWS CLI tool: pip3 install awscli --upgrade --user Script for backing up data into your AWS S3 bucket: #!/bin/bash pathtobackup='/home/USERNAME/data/' pathtoarchivefile='/home/USERNAME' filenameprefix='backup-nextcloud' secret='secretpassword' awsbucket='awsbucket-name' date=`date --iso-8601` archivefilename=$filenameprefix-$date.7z echo echo "Performing backup of $pathtobackup to s3://$awsbucket/$archivefilename" echo echo `date -Is` echo "Compressing $pathtobackup to $pathtoarchivefile/$archivefilename" echo 7za a $pathtoarchivefile/$archivefilename $pathtobackup -p$secret echo echo… Continue reading AWS S3 backup script

[Raspberry Pi] script for auto reconnecting WiFi connection

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Create script file: touch /home/volumio/wifi-reconnect.sh with following content: #!/bin/bash   SSID=$(/sbin/iwgetid --raw) if [ -z "$SSID" ] then     echo "`date -Is` WiFi interface is down, trying to reconnect" >> /home/volumio/wifi-log.txt     systemctl restart wireless fi echo "WiFi check finished" Make new file executable: chmod +x /home/volumio/wifi-reconnect.sh Install cron: sudo apt-get install cron… Continue reading [Raspberry Pi] script for auto reconnecting WiFi connection

Using AWS EC2 CLI - part 2

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Using AWS EC2 CLI - part 2 Script for checking VMs status: https://github.com/openterprise/scripts/blob/master/aws-status.sh Example user data file script: https://github.com/openterprise/scripts/blob/master/aws-user-data.sh #create VM centos aws ec2 run-instances --image-id ami-18f8df7d --security-group-ids sg-ID --subnet-id subnet-ID --count 1 --instance-type t2.micro --key-name KEY-NAME --user-data file://aws-user-data.sh --block-device-mappings 'DeviceName=/dev/sda1,Ebs={VolumeSize=10,DeleteOnTermination=false}' --query 'Instances[0].InstanceId' #stop ALL instances (only those are running) aws ec2 stop-instances --instance-ids `aws… Continue reading Using AWS EC2 CLI - part 2

Bash swap function for swapping two files

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Put following function definition code into ~/.bashrc file: function swap()         {     local TEMPFILENAME=tempfile.$$     mv "$1" $TEMPFILENAME && mv "$2" "$1" && mv $TEMPFILENAME $2 } Usage: swap FILE1 FILE2 This solution was originally found at: https://stackoverflow.com/questions/1115904/shortest-way-to-swap-two-files-in-bash/1115909#1115909