Useful Linux apps.

  • fd-find
  • ripgrep
  • shakrdp/bat
  • dandavison/delta

Remote Windows OS

Lang: sh 
rdesktop <win-serv-ip> -g 90% -r disk:mkmwp="$mwp" \
  -u '<domain>\<username>' -p <password>

ImageMagick

Reduce image disk size.

Lang: bash 
# reduce size and compress images
for img in t1/*.jpg; do \
	convert -strip -interlace Plane -gaussian-blur 0.05 -quality 85% \
	  -resize 50% -rotate 90 "$img" "${img%.*}.sm.jpg"; \
done

# rotate images
for img in *.jpg; do \
	convert -rotate 90 "$img" "${img%.sm.*}.jpg"; \
done

List all listening network ports

Lang: bash 
$ sudo lsof -i -P -n | grep LISTEN
systemd-r 1003 systemd-resolve   14u  IPv4  29127      0t0  TCP 127.0.0.53:53 (LISTEN)
sshd      1227            root    3u  IPv4  29335      0t0  TCP *:22 (LISTEN)
sshd      1227            root    4u  IPv6  29337      0t0  TCP *:22 (LISTEN)
apache2   1239            root    4u  IPv6  29308      0t0  TCP *:80 (LISTEN)
apache2   1245        www-data    4u  IPv6  29308      0t0  TCP *:80 (LISTEN)
apache2   1246        www-data    4u  IPv6  29308      0t0  TCP *:80 (LISTEN)
cupsd     1350            root    6u  IPv6  33965      0t0  TCP [::1]:631 (LISTEN)
cupsd     1350            root    7u  IPv4  33966      0t0  TCP 127.0.0.1:631 (LISTEN)
dictd     2028           dictd    3u  IPv4  34458      0t0  TCP 127.0.0.1:2628 (LISTEN)
tac_plus  8860            root    0u  IPv4  98384      0t0  TCP *:49 (LISTEN)
tac_plus  8860            root    2u  IPv6  98386      0t0  TCP *:49 (LISTEN)
qemu-ln   9858            user    6u  IPv4 111247      0t0  TCP 127.0.0.1:49033 (LISTEN)
qemu-ln   9858            user    7u  IPv4 111248      0t0  TCP 127.0.0.1:42407 (LISTEN)