Useful tips for everyday
How do you interrupt a cat command? When you press CTRL-C the current running command or process get Interrupt/kill (SIGINT) signal. This signal means just…
What are floppy disks used for? Floppy disk, or diskette, magnetic storage medium used with late 20th-century computers. Floppy disks were popular from the 1970s…
What is the format of ps? Adobe PostScript (. PS) file format was developed by Adobe in 1982. This postscript file format is widely used…
How do I stop Linux from shutting down? To cancel a shutdown, use the -c (cancel) option. Although you don’t get any notification that your…
How do I activate a bootable USB? Boot from USB: Windows Press the Power button for your computer. During the initial startup screen, press ESC,…
Does tcpdump show filtered packets? If a filter is specified on the command line, tcpdump counts only packets that were matched by the filter expression.…
How do you delete an environment variable? ON WINDOWS Right-click on My Computer and select Properties. Go to the Advanced system settings tab. Click the…
What is the difference between the boot loader in the BIOS and the loader in the operating system? Modern BIOS versions are used to set…
How to grep for a paragraph in Linux using AWK? Specifically in AIX, one of the options available for grep is the -p flag. The…
What commands could you use to show the group membership? To display the members of a group, or the groups to which a user belongs,…