You have a file called input.csv file containing
fname, lname, email, postcode
john,smith,johnsmith@example.com,4000
jane,doe,janedoe@example.com,4112
and you want to get the lname element
while IFS=',' read -r a1 a2 a3 a4
do
echo "$a2" >> lname.csv
done < input.csvSource: https://unix.stackexchange.com/questions/106047/extract-the-4th-column-from-a-csv-file-using-unix-command
sudo fdisk -l # take note of the added disk sudo fdisk /dev/sdX # where X is the value for the disk # in fdisk: n (ew) p (rimary) 1 (first and last sector defaults) w (rite) sudo fdisk -l # take note of disk partition, eg: sdX1 sudo mkfs -t ext4 /dev/sdX1 sudo mkdir /mnt/newdisk lsblk -d -fs /dev/sdX1 # take note of UUID value # edit /etc/fstab to add the following UUID=$UUIDValueFromAbove /mnt/newdisk ext4 defaults 0 2 sudo mount -a # or reboot to test
References:
https://linuxconfig.org/how-fstab-works-introduction-to-the-etc-fstab-file-on-linux
https://linuxconfig.org/how-to-add-new-disk-to-existing-linux-system
Runs one conversion per core
apt-get install ffmpeg
apt-get install parallel
find ~/videos -name "*.m4a" | parallel 'ffmpeg -i {} -acodec libmp3lame {.}.mp3'
apt-get update apt-get full-upgrade -y apt-get install -y kali-desktop-xfce xorg xrdp echo "[i] Configuring xrdp to listen to port 3390 (but not starting the service)" sed -i 's/port=3389/port=3390/g' /etc/xrdp/xrdp.ini sudo /etc/init.d/xrdp start sudo systemctl enable xrdp
Access it from MS RDP using port 3390 (it translates to 3389 – see the line with sed to change)
from https://www.kali.org/docs/general-use/xfce-with-rdp/
This will probably work for other distributions as well. Be aware this enables password auth.
Edit /etc/ssh/sshd_config
and the following:
PubkeyAuthentication yes
PasswordAuthentication no
To use key based authentication.
$ lsblk
Look at disks to check what is already in use
Add disk in vcenter
$ for h in $(ls /sys/class/scsi_host); do
echo ‘- – -‘ > /sys/class/scsi_host/$h/scan
done
$ for h in $(ls /sys/class/scsi_host); do
echo '- - -' > /sys/class/scsi_host/$h/scan
done
$ lsblk
look at disks, it should be added
fdisk -l
take note of added disk
eg: /dev/sdc
fdisk /dev/sdc n - new partition p - primary 1 defaults w - write
pvscan
take note of disk /dev/sdc1
pvcreate /dev/sdc1
vgdisplay
take note of vg name, eg: ubuntu-vg
vgextend ubuntu-vg /dev/sdc1
pvscan
disk should be added
lvdisplay
take note of LV name (logical volume name), eg: /dev/ubuntu-vg/ubuntu-lv
lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv
resize2fs -p /dev/ubuntu-vg/ubuntu-lv
sudo apt update sudo apt -y remove apt-listchanges sudo apt -y upgrade sudo apt -y full-upgrade sudo apt -y autoremove sudo sed -i 's/buster/bullseye/g' /etc/apt/sources.list sudo sed -i 's/buster/bullseye/g' /etc/apt/sources.list.d/*.list sudo sed -i 's#/debian-security bullseye/updates# bullseye-security#g' /etc/apt/sources.list export LC_ALL=C sudo apt update sudo apt -y upgrade sudo apt -y full-upgrade sudo apt -y autoremove
References: https://linuxize.com/post/how-to-upgrade-debian-10-to-debian-11/
I was scheduling an apt-get update && apt-get –y upgrade on a Debian 8 box and the process stopped waiting for keyboard input showing the change logs for CA-Certificates.
it had actually started VI and was displaying a text file. This would stop the automatic update process.
To prevent this I ran apt-get –y remove apt-listchanges
References:
https://serverfault.com/questions/835303/is-there-a-way-to-make-apt-get-upgrade-not-show-changelogs