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ctrl + alt + shift + t      = refactor this
alt + enter                 = allerlei shortcuts
ctrl + alt + l              = reformat code
shift + f11                 = show bookmarks
f11                         = insert bookmark
alt + insert                = file new
ctrl + n                    = navigate class
ctrl + shift + n            = navigate file
ctrl + shift + f            = find in path
ctrl + alt + shift + insert = commit file (eigen shortcut)

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Linux - Systemd cheatsheet

systemctl

Activates a service immediately:

systemctl start foo.service

Deactivates a service immediately:

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LPI Essentials Notices

• Managing Users and Groups
• Managing File Ownership and Permissions
• Archiving Files
• Managing Linux Processes and Log Files
• Connecting Linux to a Network

8 Managing Users and Groups

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Ansible - Cheatsheet

ansible-galaxy

Playbook template init with ansible-galaxy

ansible-galaxy init roles/myrole

ansible-playbook

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Tmux -Shortcuts & Cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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CURL - cheatsheet

• XML GET

curl -H "Accept: application/xml" -H "Content-Type: application/xml" -X GET "http://hostname/resource"

• JSON GET

curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET "http://hostname/resource"

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# We have two options:
# compress in .tar.gz (bigger size) or .7z (about 60% less size).
# .tar.gz
#
tar -czvf vivaldi-settings.tar.gz ~/.config/vivaldi/Default/
# Explanation:
# c: create a new archive
# z: gzip
# v: verbosely list files processed
# f: use archive file or device ARCHIVE

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tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

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Full command line options

ffmpeg -f gif -i FOO.gif -pix_fmt yuv420p -c:v libx264 -movflags +faststart -filter:v crop='floor(in_w/2)*2:floor(in_h/2)*2' BAR.mp4

Notie

• output mp4 is encoded with h264, support Firefox/Chrome/Safari in Windows, Mac OSX, Android, and iOS.

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#!/bin/bash -e
# -e means exit if any command fails
DBHOST=address.to.your.server
DBUSER=username
DBPASS=password # do this in a more secure fashion
DBNAME=DBNAME
GITREPO=/where/is/your/repo
DUMP=$GITREPO/where/you/store/dumps
NEW=$DUMP/schema.sql
OLD=$NEW.old