sudo docker run -p 5432:5432 -v /home/alfred/tmp/postgresdata:/var/lib/postgresql/data -e POSTGRES_PASSWORD=mysecretpassword postgres

Havig the next ALIAS:

function cheat() { curl cht.sh/$1 }

You can do cheat rename to see examples.

grep -iRl “your-text-to-find” ./
Here are the switches: -i ignore text case, -R recursively search files in subdirectories, -l show file names instead of file contents portions.

rename 's/perl/pl/' *.perl
# Sample outputs:
# 'bar.perl' renamed to 'bar.pl'
# 'foo.perl' renamed to 'foo.pl'
# Lowercase all files and folders in current directory
rename 'y/A-Z/a-z/' *

# Compress a folder
tar -zcvf archive-name.tar.gz directory-name

# Extract it
tar -xzf bar.tar.gz

zip -r folder.zip ./folder

python3 -m http.server 8000

\q: exit.
\list or \l: list all databases
\dt: list all tables in the current database
\connect database_name to switch database
$ export PGPASSWORD=mysecretpassword && psql -h 127.0.0.1 -U postgres
$ export PGPASSWORD=mysecretpassword && dropdb -h 127.0.0.1 -U postgres fok
$ export PGPASSWORD=mysecretpassword && createdb -T template0 -h 127.0.0.1 -U postgres fok
$ psql restored_database < database.bak
$ pg_dump postgres > postgres_db.bak
$ pg_dumpall > backup_file

docker run -p  27017:27017 -v /home/alfred/mongodata:/data/db  -d mongo