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Hi,

If you're wanting to print the separate fields of a CSV out one per line, then something like this would work:


$ cat test.csv...

Hello,

OK, here's a quick hacked-together version of a script that more-or-less does what crond would do. As Neo has mentioned however, this is not the best idea, as you're kind of needlessly...

Hi,

In that case, you'd really be into the territory of literally re-inventing crontab. For example, you could define an input file format that consisted of runtimes and their associated...

Hi,

Using the approach from my script, you would just tweak the runtime variable accordingly. For instance, in the provided example:


runtime=`/usr/bin/date -d '2019-08-09 14:22:00' +%s`

...

Hi,

If you definitely don't have access to the crontab for the user you want to run the script as, and if you can't get the person who has root on the box in question to set it up for you, then...

Hello,

Yes, that's correct - this error means that the user myuser is not allowed to run the su command via sudo. That's not unusual, and in fact is generally good practice. If you let regular...

Hi,

As Neo has said, the most likely explanation here is that myuser has a valid shell set in /etc/passwd, whereas webuser does not.

Witness the following example:


# finger -l unixforum...

Hi,

The sed command can take care of this for you:


$ cat test.txt
,001E:001F,,,02EE,0FED:0FEF,
$ sed -i 's/^,//g;s/,$//g' test.txt
$ cat test.txt
001E:001F,,,02EE,0FED:0FEF


The...

Hi,

Assuming you're using Bash as your shell, this is the ideal situation for the case statement. Consider the following example:


$ cat data.txt
Jog
mog
cat
dog
jug
Man
$ cat...

Hi,

In terms of your script itself as a solution to your problem, a change like this should work:


#!/bin/bash
IP=$1
first_port=$2
last_port=$3
function scanner

{
for...

Hi,

On most Linux systems, the /boot directory holds the files that the system needs in order to boot. Note that this is meant quite literally - it holds purely the files needed for booting, i.e....

Hi,

In theory, this should be fairly straightforward. If you want to delete all files created from 2017 and beyond (i.e. also files from 2016, 2015, etc - anything older than 2017), then you...

Hi,

There's a few ways to approach this, but using the find command as you're starting to do will certainly do the trick. However, as things stand, your find command isn't actually going to do...

Hi,

This would to me indicate that something has gone wrong when you copied-and-pasted the script code into your terminal. The ^M character is used by Windows to mark the end of lines in a file,...

Hi,

I'm not quite sure what could have gone wrong, since I'm not seeing any sign of you having run the script or the output file being created here. If you run the version of the script that I...

Hi,

I think you're very nearly there, but perhaps have just over-complicated things a bit. You can do all this with just the one input file, the one output file, and the groups command.

Here's...

Hi,

One way to do this would be to take the output of your awk command, and directly use that via command substitution as input for the date command to work on.

In the following example, we...

Hi,

Yes, the issue here is most likely to be zenity, as you say. zenity is a utility for displaying dialog boxes in an X Windows graphical environment. If you're running this server headless...

Hello,

My initial thought was that this would be straightforward, and something like this one line of awk would work:


$ cat test.txt
1234 84 test1 file:about user_detials(bankUser) :jpeg 10...

Hi,

I think there are two main questions here: firstly, when you say that it "is not quite working", what is going wrong ? Are you getting an error, or do you find that the idle message is never...

Hello,

On my test environment (Linux with GNU userland), something like this would appear to do what you need:


$ pwd
/home/unixforum/279952
$ ls
f123456grKNI foo/
$ ls foo
f11223grKE...

Hi,

Aside from missing out the $ before your variable name as has been pointed out, the other problem you'll have here is that you have to cast your temperature variable (which is a floating-point...

Hi,

I'd just included that as a demonstration of how if works, really, so you could get an idea of what you need to do in your own code. So rather than directly using my example script, you'd...

Hi,

If all you're looking for is a way in Bash to test the value of a number, then the if statement can handle that on its own.

For example, here's a script that will test a previously-defined...

Hi,

I'm not entirely clear on what could have caused a reboot here - from the output you've provided it seems that after five seconds the script proceeded to kill the previously-backgrounded...