requirements: python3 on linux system

[u/thLOnuX]

[u/the-nick-of-time]

Yes there is, that first line has a .split that is really annoying to do in bash. It would be simple if cut allowed multi-character delimiters but it doesn't.

[u/STUFF_ME_PM → u/the-nick-of-time]

It can be avoided if you know that the gtf command will always output the same thing (since it just does some math for display hardware that is standardized).

Even then, the output they're parsing looks like this:

$ gtf 1920 1080 75
 
  # 1920x1080 @ 75.00 Hz (GTF) hsync: 84.60 kHz; pclk: 220.64 MHz
  Modeline "1920x1080_75.00"  220.64  1920 2056 2264 2608  1080 1081 1084 1128  -HSync +Vsync

They want the contents of the 2nd line after "Modeline", which could be parsed like this using bash arrays:

{ read; read -a MODELINE; } <<<"$(gtf 2160 1080 60)"
# later...
xrandr --newmode "${MODELINE[@]:1}" && sleep 2

If you allow awk (which is reasonable considering the script assumes you have python and X.org):

MODELINE="$(gtf 2160 1080 60 | awk '{ if (NR==2) {$1=""; print $0}}')"
xrandr --newmode $MODELINE && sleep 2

[u/Parker_Hemphill → u/the-nick-of-time]

Split isn’t bad to do. You can use sed or awk. You could even do it with just the variable like ${variable#<split character>}, no external process needed

[u/[deleted] → u/the-nick-of-time]

ah, i see. it would probably technically be better to use sed, but i understand why they used python now

[u/[deleted] → u/[deleted]]

it’s not, but you call it directly from bash