While no chart like this can give you every information about moving over to Unix/Linux, this tries to summarize some of the main concepts and commands.
| DOS/Windows | UNIX |
|---|---|
| Acrobat Reader | Numerous free replacements: poppler, xpdf, kpdf, ... |
| at | at (copied from Unix) |
| attrib | chmod |
| bat file | shell script |
| call | sh |
| cd | cd (copied from Unix) |
| cd[no args] | pwd |
| chcp | (done with an environment variable LANG) |
| chdir | cd (copied from Unix) |
| chkdsk | fsck |
| cmd/command | a terminal program + a shell (many choices) |
| copy | cp |
| date | date |
| del | rm |
| dir | ls |
| dir/s | find |
| Drive letters | Mount points (unified filesystem) |
| edlin | vi, emacs (256x more powerful) |
| erase | rm |
| excel | scalc (part of openoffice) |
| exit | exit |
| fc | diff |
| fdisk | fdisk (copied to Unix) |
| help | help |
| if | if (many more flow control capabilities) |
| IIS | Apache Httpd, Apache Tomcat, JBoss AS, others |
| Illustrator | Inkscape (free) |
| Internet Explorer | Firefox |
| md,mkdir | mkdir |
| more | more (copied from Unix) |
| MS office | openoffice.org, koffice, others. |
| MS Windows | (Linux|OpenBSD|FreeBSD|...) + X Windows + (KDE|GNOME|...) |
| notepad | kedit,kate,gedit,... |
| NUL: | /dev/null (copied from Unix) |
| Office | Where I work. See MS Office. |
| PageMaker | Scribus (free) |
| Photoshop | Gimp (free) |
| popd | popd (depends on shell) |
| powerpoint | simpress (part of openoffice) |
| lpr | |
| Publisher | SWriter, Scribus |
| pushd | pushd (depends on shell) |
| ren | mv |
| set | set+export (Ksh/Bash); setenv (CSH) |
| setlocal | should be called setlocale; controlled by LOCALE environment variable |
| shift | shift (copied from Unix) |
| sort | sort |
| SQL Server | PostgreSQL, MySQL, etc. |
| start | n/a; depends on Desktop; can write shell script to do |
| time | date |
| title | (done with echo and escape sequences in most terminal emulators) |
| type | cat or more |
| ver | uname |
| vol | varies; try disklabel |
| Windows | Are for looking out of; see MS Windows for Microsoft |
| word processing | SWriter (part of openoffice); many others |
| xcopy | cp -r |
This document is updated occasionally; the current version may be obtained from http://www.darwinsys.com/openbsd/.