Linux Basic Commands Part 1

Linux basic command Line

The first command is date. This command displays the current time and date.

# date

Second command is cal which, by default, displays a calendar of the current month.

# cal

To see the current amount of free space on your disk “The df command reports how much disk space we have” enter df Command:

# df

To check the information of disk usage of files and directories on a machine. du command reports how much disk space is being consumed by the files and folders.

# du

Check disk usage in Human Readable Format.

# du -h

display the amount of free memory, enter the free command.

# free

To change your working directory, enter cd command.

# cd

To display the current working directory, we use the pwd (print working directory) command.

# pwd

To list the files and directories in the current working directory enter ls

Command.

# ls

We use ls -l for long listing format

# ls -l

Use ls -lt sort by modification time

# ls -lt

List all files, even those with names that begin with 'a' “.  ... “ which are normally not listed (example hidden).

# ls -la

display file sizes in human readable format

# ls -lh

# ls -h