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| Create sudo user with bash and homedir: | |
| useradd -m -d /home/testuser/ -s /bin/bash -G sudo testuser | |
| Find folders and set access for them: | |
| sudo find . -type d -exec chmod 755 {} + | |
| Get/Delete files by mask: | |
| Check: find . -name "*.bak" -type f | |
| Delete: find . -name "*.bak" -type f -delete | |
| Remove *.gz files older than 1 day | |
| find ./path_to_find -name "*.gz" -type f -mtime +1 -exec rm {} \; | |
| Disk Info: | |
| sudo aprted -l | |
| sudo df -h | |
| sudo df -h --output=source,fstype,size,used,avail,pcent,target -x tmpfs -x devtmpfs | |
| Show largest directorries in current path: | |
| sudo du --max-depth=1 2> /dev/null | sort -n -r | head -n20 | |
| SSH keys | |
| ssh-keygen -t rsa | |
| ~/.ssh/authorized_keys | |
| Show LISTEN ports | |
| netstat -ntlp | grep LISTEN | |
| DB. Import big file by console | |
| psql --host=127.0.0.1 --port=5432 --dbname=mycity --username=mycity --password -f /path_dump/dump.sql | |
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