/dev/chat

« first day (2693 days earlier) ← previous day next day → last day (2559 days later) »

overexchange

15:43

Does below command create folders again despite you have the folder existing with files?

mkdir -p /var/xyz

ilkkachu

It creates /var and /var/xyz if they don't exist. mkdir shouldn't trash existing directories, if that's what you're worried about

overexchange

16:03

overexchange

16:23

@ilkkachu What does ${#i} mean below?

for i in `ls -1rt $sDir`

do

if [ ${#i} -eq 48 ]; then

ilkkachu

I assume you didn't write that yourself, right? (just checking)

overexchange

I did not write

yes

ilkkachu

(Because I was going to say something ugly about whoever wrote that, but never mind.)

${#i} is the length of the value of i.

that is, the filename there. But that whole thing falls into the Parsing Ls territory. (also this about sorting files by metadata, though I do know the solutions for sh/bash are rather annoying.)

overexchange

length of each file name?

ilkkachu

as for ${foo} and friends: mywiki.wooledge.org/BashGuide/Parameters#Parameter_Expansion

yeah

overexchange

16:32

horrible hahaha

file length is 47 now

hahaha

I understand what u meant ugly now

2 hours later…

overexchange

18:25

for i in ls -1rt $sDir` I want to pick files that are starting with ABC- and process them

What is the condition in if [ condition ]; then?

Kusalananda

19:04

@overexchange You would do for name in "$sDir"/ABC-*; do ...; done

Don't ever used for i in $(ls) or anything like that. Use shell filename globbing patterns instead.

If you want to be sure that you only pick up regular files, then you may use [ ! -f "$name" ] && continue inside the loop to continue with the next name if the current name is not that of a file.

Thijser

Hey people

Any of you know about how to create custom animated wallpapers?

Kusalananda

19:40

@Thijser No, sorry, I use a boring single-coloured background.

Thijser

@Kusalananda ok thanks for thinking about it anyway

Anyway if you know someone who might be able to help

Q: How do I create my own real time updating wallpaper

I have some basic experience with opengl and was thinking that I would love to have an animated wallpaper that also factors in some properties about my machine (such as sound volume,cpu usage etc.) now I understand that in order to do this I would have to create a basic opengl program (I already ...