Add tipps to the tasks of day 2

src/day_2/tasks.md

@@ -30,7 +30,13 @@ We will use the program `inotifywait`. This program can monitor a directory and
 1. Based on the output, choose an event that you want to listen to with `inotifywait` that tells you when a file is _completely_ added to the directory `jobs`. Use the manual to read more about specific events.
 1. Find an option that lets you tell `inotifywait` to only notify when the choosen event occurs.
 1. Find an option that lets you format the output of the notification of `inotifywait`. Since we only listen on one event and monitor only one directory, an output that shows only the name of the new file should be enough.
-1. Enter the command that you have until now in a script. Now extend it by using a `while` loop that continously listens on the notifications of `inotifywait`.
+1. Enter the command that you have until now in a script. Now extend it by using a `while` loop that continously listens on the notifications of `inotifywait`. Use the following snippet while replacing the sections with `(...)`:
+   ```bash
+   inotifywait (...) | while read FILENAME
+   do
+       (...)
+   done
+   ```
 1. After a notification, the body of the `while` loop should first print the name of the script that was added. From now on, we only want to add scripts to the `jobs` directory.
 1. After printing the script name, run the script!
 1. Save the standard output and standard error of the script into two separate files in the `logs` directory. If the name of the script is `job.sh` for example, then the output should be in the files `logs/job.sh.out` and `logs/job.sh.err`.
@@ -56,6 +62,33 @@ If the name of the job script is `job.sh` for example, the job script should be
 
 Use variables to write the script to make it more understandable.
 
+#### Help
+
+To save the output of a command into a variable, use you have to use the following syntax:
+
+```bash
+DATE=$(date ...)
+```
+
+Replace `...` with your code.
+
+To read the `n`-th argument that is provided to a script you write, you have to use `$n`.
+
+Example script called `arg.sh`:
+
+```bash
+#!/usr/bin/bash
+
+echo "The first argument is: $1"
+```
+
+When you run this script with an argument:
+
+```console
+$ ./arg.sh "Hello"
+The first argument is: Hello
+```
+
 ## Task: Submit a job
 
 Write a small scripts of your choice that require a long time to run and submit them using the script from the last task. Make sure that the scheduler is running in the background.