Command Window – Basic Commands

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Command Window – Simple Commands help lists all commands p: switch to your P-drive c: switch to the computer’s C-drive dir list all files in a directory (aka “folder”); e.g. dir (list all files in current directory) dir myfolder (list all files in subdirectory myfolder) cd change directory; e.g. cd myfolder (move to subdirectory myfolder) cd .. (move up one directory level) md make (create) a directory; e.g. md myfolder (make a subdirectory called myfolder) copy copy files; e.g. copy oldfile newfile copy source.f90 myfolder\source.f90 ren rename files; e.g. ren oldfile newfile erase erase (delete) a file; e.g. (or del) erase unwanted.txt fc file compare; e.g. fc file1 file2 type list the contents of a file type somefile.txt type somefile.txt ¦ more (list contents, one page at a time) Wildcards (* and ?) Can be used to match length-unspecified strings (*) or individual letters (?); e.g. copy *.f90 *.bak dir solve.f?? Command Syntax and Options Most commands have various options; e.g. dir /p – list files, one page at a time To find the syntax and options available for any particular command use the /? option; e.g. dir /? History Use the and arrows on keyboard to recover previous commands. Use F7 to get a list of previous commands and arrow up and down to choose one to reissue. Editors An editor called notepad comes with the operating system: notepad myfile.f90 Running Programs You can run any program simply by typing its name; e.g. to run windows explorer: explorer Batch Files To avoid having to type a long sequence of commands it is convenient to put them all in a batch file – identified by the .bat extension. This sequence is then run, one after the other, by typing the name of the batch file. Fortran Command Window Basics David Apsley .

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