cat, cut, find,free, head,kill, man,nice, paste,sleep,tail, touch, watch , who - What is this!!Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. Nowadays, Linux commonly using in Desktop machines as well as Servers. Lots of commands are available in Linux for sysem use. Most of them can easily remember to a normal user. Some of the interesting commands in Linux as shown here.
| Command | Description |
|---|---|
| cat | Concatenate files and print on the standard output |
| clear | Clear terminal screen |
| cut | Divide a file into several parts |
| date | Display or change the date & time |
| echo | Display message on screen |
| eject | Eject CD-ROM |
| expand | Convert tabs to spaces |
| factor | Print prime factors |
| find | Search for files that meet a desired criteria |
| fold | Wrap text to fit a specified width |
| format | Format disks or tapes |
| free | Display memory usage |
| head | Output the first part of file(s) |
| join | Join lines on a common field |
| kill | Stop a process from running |
| less | Display output one screen at a time |
| man | Help manual |
| nice | Set the priority of a command or job |
| paste | Merge lines of files |
| screen | Terminal window manager |
| select | Accept keyboard input |
| sleep | Delay for a specified time |
| sort | Sort text files |
| split | Split a file into fixed-size pieces |
| tail | Output the last part of files |
| test | Evaluate a conditional expression |
| time | Measure Program Resource Use |
| touch | Change file timestamps |
| top | List processes running on the system |
| watch | Execute/display a program periodically |
| whereis | Report all known instances of a command |
| which | Locate a program file in the user's path |
| who | Print all usernames currently logged in |
| whoami | Print the current user id and name (`id -un') |
| yes | Print a string until interrupted |
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