How to create floppy image file on Mac
Task: create disk image file on Mac to use in virtualBox from directory Implementation: Use next command: hdiutil makehybrid -o…
Tag: bash
How to decode file from cp866 to utf on Mac
Task: decode text files in bash from cp866 to uff Implementation: Use next command: iconv -f cp866 -t utf-8 <…
How to open finder window with current path
Task: Open finder window with current path in the terminal Implementation: Use next command: open . Done.
How to execute SQLs in the docker Postgres db
Task: Write script to execute SQL commands in the docker Prostgers DB Script: Import dump file: Done.
How to Set all directories to 755 and all files to 644
Task: set different attributes for files and directories Solution: Done.
Monitor periodically linux ordered processes
Task: Monitor processes on the linux instance order by CPU usage Solution Use next command (displays top 15 rows): ps…
Linux check if server exists by IP and port
Task: Check if server exists by IP and port in the Jenkins Job before connect to it by SSH in…
AWS get list of ec2 ids by beanstalk environment name
Task: Get list of EC2 instances Id(s) by beanstalk environment name Solution: envname=”wp-env” for ec2Id in $(aws elasticbeanstalk describe-environment-resources –environment-name…
Docker: How to copy file from container to local computer
Task: Copy some file from container to local computer Solution: docker cp <container>:<path><filename.ext> <localpath> Example: docker cp nginx:/var/log/mylog.log . Done.
How to play mp3 file from osX console
Task: Play mp3 file from osX console Implementation: Use internal player: afplay file.mp3 Useful parameter: -r <rate> – set playback…
Howto monitor AWS EC2 instance status in bash script
Task: Monitor instance status in bash script Implementation: #!/bin/bash instanceID=i-… # your instance ID # Get instance status… instanceStatus=$(aws ec2…
Howto get list of directories and their size in Linux
Task: Get lust of directories and their size Solution: du -sh * With hidden directories: sudo du -sh $(ls -A)…