Share your favorite Linux tools that you frequently used. Here’s mine.

du -sh * -> estimate file space usage, display total and in human readable format.
ls -al -> list all files in long format.
df -h -> show how much free disk space in human readable format.
top -> see currently running processes and other information like memory and CPU usage with real time updates.
mv -> move files and directories
w - see who is currently login.
find -> find files.

Hardware:

cat /proc/cpuinfo |grep “model name” -> to check cpu info

lspci -> to check pci items

lsmod -> to check installed hardware