Suppose that I have a file called temp.txt. Using the cat program, I would like to add the contents of this file to the end of myfile.txt-- creating myfile.txt if it does not exist and appending to it if it does. I am considering these possibilities: cat temp.txt > myfile.txt or. cat temp.txt >> myfile.txt Both commands appear to work as I want. cat: [noun] a carnivorous mammal (Felis catus) long domesticated as a pet and for catching rats and mice. any of a family (Felidae) of carnivorous usually solitary and nocturnal mammals (such as the domestic cat, lion, tiger, leopard, jaguar, cougar, wildcat, lynx, and cheetah). A pair of paw prints, as left by a pet 🐈 cat or 🐕 dog. Generally depicted as two, staggered, dark-colored paw prints, each showing four toes and a pad. Commonly used for various content concerning pet cats and dogs. Occasionally applied to other quadruped mammals. See also 👣 Footprints. [Intro] Ayy! Oh! Doo-doo-doo [Verse 1: Beomgyu, Yeonjun] Someone say, "What's going on? How on earth are you seeing someone Who's totally your opposite?" I ain't so sure but I know we just keep 1) To view a file using cat command, you can use the following command. $ cat filename. 2) You can create a new file with the name file1.txt using the following cat command and you can type the text you want to insert in the file. Make sure you type ‘ Ctrl-d’ at the end to save the file. $ cat > file1.txt. With cat command: └─$ whoami | cat > out.txt └─$ cat out.txt testter Without cat command: └─$ whoami | > out1.txt └─$ cat out1.txt #no any content in file.. └─$ whoami | >> out2.txt └─$ cat out2.txt #no any content in file.. I could also use an alternative tool instead of the cat command. It's not the cat tool that's Here's what the lyrics mean according to a translation by Twitter fan account DoYou_TXT: Feel like I’m your cat I’m your dog / With my two eyes, I can only see you / Our relationship isn’t Let us say you want to search for keyword acl and save that output a file named my-acl.txt, and then you need to run: $ grep acl squid.conf > my-acl.txt We can find tune searching and limit the search to words starting with keyword named acl: $ grep -w '^acl' squid.conf > my-acl.txt View the final output using the cat command/more command or 6WiQ.