I use the following script called "~/.music.automation.sh" and load it from my "~/.bash_profile" with "source ~/.music.automation.sh".
---
# ~/.music.automation.sh
# Volume stuff
alias vol="osascript -e 'output volume of (get volume settings)'"
alias 0="osascript -e 'set Volume 0'"
alias 1="osascript -e 'set Volume 0.3'"
alias 2="osascript -e 'set Volume 0.6'"
alias 3="osascript -e 'set Volume 0.9'"
alias 4="osascript -e 'set Volume 1.2'"
alias 5="osascript -e 'set Volume 1.5'"
alias 6="osascript -e 'set Volume 1.8'"
alias 7="osascript -e 'set Volume 2.1'"
alias 8="osascript -e 'set Volume 2.4'"
alias 9="osascript -e 'set Volume 2.7'"
alias 10="osascript -e 'set Volume 3.0'"
# Synonyms for above
alias m="osascript -e 'set Volume 0'"
# Spotify stuff
alias next="osascript -e 'tell application \"spotify\" to next track'"
alias n="osascript -e 'tell application \"spotify\" to next track'"
alias previous="osascript -e 'tell application \"spotify\" to previous track'"
alias prev="osascript -e 'tell application \"spotify\" to previous track'"
alias p="osascript -e 'tell application \"spotify\" to previous track'"
alias pp="osascript -e 'tell application \"spotify\" to playpause'"
---
Then, I can SSH into MacOS and control the music remotely, from my phone for example. Enjoy!
Matt Feenstra is an Architect and Developer, living and working in Palm Desert, CA
Sunday, May 10, 2020
Thursday, April 16, 2020
HOWTO: Add loopback as a service
This can be easily done by adding an "ip" command to system startup with RHEL8 "systemctl".
1. Create a run script for ip to setup a loopback device on 192.168.10.1:
echo 'ip addr add 192.168.10.1/24 dev lo' >/usr/local/sbin/loopback2.sh
chmod 700 /usr/local/sbin/loopback2.sh
2. Create the service file:
vi /lib/systemd/system/loopback2.service
or
systemctl edit loopback2
2. Have it start as service with systemctl:
[Unit]
after=network
[Service]
ExecStart=/usr/local/sbin/loopback2.sh
[Install]
WantedBy=default.target
3. Enable and auto start:
systemctl enable loopback2.service
systemctl start loopback2.service
4. Confirm the setup:
ip addr
systemctl status loopback2
1. Create a run script for ip to setup a loopback device on 192.168.10.1:
echo 'ip addr add 192.168.10.1/24 dev lo' >/usr/local/sbin/loopback2.sh
chmod 700 /usr/local/sbin/loopback2.sh
2. Create the service file:
vi /lib/systemd/system/loopback2.service
or
systemctl edit loopback2
2. Have it start as service with systemctl:
[Unit]
after=network
[Service]
ExecStart=/usr/local/sbin/loopback2.sh
[Install]
WantedBy=default.target
3. Enable and auto start:
systemctl enable loopback2.service
systemctl start loopback2.service
4. Confirm the setup:
ip addr
systemctl status loopback2
Monday, March 23, 2020
HOWTO: PostgresDB & pgAdmin4 setup on RHEL 8
---
dnf -y install https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm
---
yum install pgadmin4
/usr/pgadmin4/bin/./pgadmin4- web-setup.sh
service httpd start
Monday, March 16, 2020
Handy UNIX diff: Exclusive match
Super handy tool for selectively removing serial contents from a text file:
#!/bin/bash
# xdiff <new_file> <old_file>
# Exclusive diff - just show what's different from the first file
# example: xdiff SYMBOLS.txt remove_symbols.txt >SYMBOLS2.out
diff -u $1 $2 | grep '^-[^-]' | sed 's/^-//'
#!/bin/bash
# xdiff <new_file> <old_file>
# Exclusive diff - just show what's different from the first file
# example: xdiff SYMBOLS.txt remove_symbols.txt >SYMBOLS2.out
diff -u $1 $2 | grep '^-[^-]' | sed 's/^-//'
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