mjhjmtu

I'm trying to write a script that will go to specific directory, ls files in this directory and then write it to a file in another directory. This is what I came up with so far:

#!/bin/bash
getDisk1()
 cd cwiczenia 

getDisk2() ls >> cd /home/kai/listaplikow.txt
 return


getDisk1
getDisk2

I'm running the script from the folder /home/kai/, but getDisk2 isnt writing any results to its destination. Can anyone please help me with this?

Your commands are nonsense:

 cd Pictures | ls >> cd /home/kai/listaplikow.txt

"Go into the Pictures directory. Pipe the (null) output of the cd command into ls, which does not take standard input. Send ls' output to a file called cd."

What you probably want is something like:

( cd Pictures; ls >> /home/kai/listaplikow.txt )

The reason this is in parens is do that it executes in a subshell, and does not (try to) change the working directory of the underlying script.

Either way, it's a bad idea to parse the output of ls in general. It might be better do do something like:

find Pictures/ -maxdepth 1 >> /home/kai/listaplikow.txt

If you don't like seeing the path in which the files lie, it's still better to use find to actually get the list of files:

find Pictures/ -maxdepth 1 -print0 | xargs -0 -L1 basename >> /home/kai/listaplikow.txt

Change you syntax:

cd cwiczenia | ls >> cd /home/kai/listaplikow.txt

to

cd cwiczenia && ls >> /home/kai/listaplikow.txt

Explanation:

• 
  &&: ensure that the previous command cd is successful before the ls command is run.