{"id":13,"date":"2015-11-06T16:56:15","date_gmt":"2015-11-06T16:56:15","guid":{"rendered":"http:\/\/blog.paranoidprofessor.com\/?p=13"},"modified":"2016-05-03T20:57:48","modified_gmt":"2016-05-03T20:57:48","slug":"command-line-fun-the-basics","status":"publish","type":"post","link":"https:\/\/blog.paranoidprofessor.com\/index.php\/2015\/11\/06\/command-line-fun-the-basics\/","title":{"rendered":"command line fun – the basics"},"content":{"rendered":"

I was meeting with a younger friend to fix his virus laden laptop, it turned out to be quite a mess so we decided it would be more efficient to restore it from the recovery partition. I was a bit surprised to discover that his understanding of the command line was essentially a mystery.<\/p>\n

This column will be examining various Linux commands that can be used in scripting or while working on the command line. Wherever possible I will also demonstrate similar functionality for windows batch files.\u00a0\u00a0 It is actually possible to do some basic scripting on windows but on a limited scale unless you install some additional product to help out.<\/p>\n

Eventually, I am hoping to go beyond a “random” collection of commands and turn them into scripts to actually do useful work.<\/p>\n

Basic commands<\/h2>\n\n\n\n\n\n\n\n\n
Linux<\/th>\nWindows<\/th>\nDescription<\/th>\n<\/tr>\n
ls<\/td>\ndir<\/td>\nThis command lists the files in the current working directory<\/td>\n<\/tr>\n
cd<\/td>\ncd<\/td>\nchange directory to either a fully qualified directory name or to a subdirectory within the current directory<\/td>\n<\/tr>\n
rm<\/td>\ndel<\/td>\ndelete the filename in the current directory<\/td>\n<\/tr>\n
rmdir<\/td>\nrmdir<\/td>\nremove either a fully qualified directory name or to a subdirectory within the current directory<\/td>\n<\/tr>\n
clear<\/td>\ncls<\/td>\nerases the screen and puts the cursor in the upper left hand corner<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Linux command options<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Command<\/th>\noption<\/th>\nmeaning<\/th>\n<\/tr>\n
ls<\/td>\n-l<\/td>\ndirectory listing in long format<\/td>\n<\/tr>\n
ls<\/td>\n-lt<\/td>\ndirectory listing in date\/time descending order<\/td>\n<\/tr>\n
ls<\/td>\n-ltr<\/td>\ndirectory listing in date\/time ascending order<\/td>\n<\/tr>\n
ls<\/td>\n-lSr<\/td>\ndirectory listing in long format sorted by filesize ascending.<\/td>\n<\/tr>\n
ls<\/td>\n-1<\/td>\ndirectory listing only filenames<\/td>\n<\/tr>\n
ls<\/td>\n-1<\/td>\ndirectory listing only filenames<\/td>\n<\/tr>\n
rm<\/td>\n-r<\/td>\nremoves subdirectories and their containing files<\/td>\n<\/tr>\n
rm<\/td>\n-f<\/td>\nignore nonexistent files, never prompt<\/td>\n<\/tr>\n
rmdir<\/td>\n<\/td>\nremoves empty directories<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/h2>\n

Windows command options<\/h2>\n\n\n\n\n\n\n\n\n\n
Command<\/th>\noption<\/th>\nmeaning<\/th>\n<\/tr>\n
dir<\/td>\n\/od<\/td>\ndirectory listing order by date ascending<\/td>\n<\/tr>\n
dir<\/td>\n\/os<\/td>\ndirectory listing order increasing by size<\/td>\n<\/tr>\n
dir<\/td>\n\/b<\/td>\ndirectory listing displaying filenames only<\/td>\n<\/tr>\n
dir<\/td>\n\/oe<\/td>\ndirectory listing sorted by file extension<\/td>\n<\/tr>\n
del<\/td>\n\/f<\/td>\nForce deleting of read-only files<\/td>\n<\/tr>\n
del<\/td>\n\/s<\/td>\nrecursively remove directories and their files<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

I was meeting with a younger friend to fix his virus laden laptop, it turned out to be quite a mess so we decided it would be more efficient to restore it from the recovery partition. I was a bit … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[18,17,39],"_links":{"self":[{"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/posts\/13"}],"collection":[{"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/comments?post=13"}],"version-history":[{"count":8,"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/posts\/13\/revisions"}],"predecessor-version":[{"id":916,"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/posts\/13\/revisions\/916"}],"wp:attachment":[{"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/media?parent=13"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/categories?post=13"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.paranoidprofessor.com\/index.php\/wp-json\/wp\/v2\/tags?post=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}