Metamorphic rock the foliation is called "gneissosity"), granoblastic (includes granulite, some marbles and quartzite), and hornfelsic (includes hornfels and skarn). Metamorphic rock Metamorphic rocks arise from the transformation of existing rock types, in a process called metamorphism, which means "change in form". The original rock (protolith) is subjected to heat (temperatures greater than 150 to 200 °C) and pressure ( or more), causing profound physical or chemical change. The protolith may be a sedimentary, igneous, or existing metamorphic rock. Metamorphic rocks make up a large part of the Earth's crust and form 12% of the Earth's land surface. They are classified by
Sort (Unix) name the output file because it was used to sort a file in place. In Version 5, Thompson invented "-" to represent standard input. $ cat "phonebook" The codice_1 option makes the program sort according to numerical value. The command produces output that starts with a number, the file size, so its output can be piped to to produce a list of files sorted by (ascending) file size: Use the codice_2 option to sort on a certain column. For example, use "codice_3" to sort on the second column). In old versions of sort, the codice_4 option made the program sort