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UNIX for Dummies Questions & Answers
How to use emacs? Also how to open existing emacs files with .cgi format?
Post 302796811 by hanson44 on Saturday 20th of April 2013 09:50:41 PM
04-20-2013
Yes, you are correct, the emacs editor just edits text, it's just another unix editor.
I should disclose that I do not normally use emacs. I use vi (vim). But there is nothing wrong with emacs. emacs works fine. But it's probably a good idea to pick one or other other (vi or emacs), really concentrate on it, get it into your fingers. There is a topic about "favorite editor" that seems to indicate a strong preference for vi, so just possibly it might be a good idea to consider learning vi instead:
https://www.unix.com/unix-dummies-que...ryone-use.html
Yes, you just type cd, space, path, and then press Enter key. And the same thing for the file: emacs, space, then abc.cgi or whatever the name is.
Do's and dont's are just to make sure you don't mess anything up. For example, even besides being very counter-intuitive for new users, vi is infamous because it's easy to press the CAPS-LOCK key by mistake, and then all the commands are totally different and extremely confusing. Once it's happened a few times, the user knows about it. But the first time, it can be pretty scary.
That is a very complicated topic. You probably know that the CGI program sits on the server. The CGI program can be written in a compiled language, bash, perl, python, etc. The CGI program reads data from the browser (using either POST or GET), and then sends data back to the browser (for example, sends a new web page). The only way you are going to understand the CGI code is start with something simple, and read a book about CGI. I should note that CGI is pretty complex, especially because it can be hard to troubleshoot, because there are multiple things going on (client, server, CGI program). CGI is very useful and important.
I should disclose that I do not normally use emacs. I use vi (vim). But there is nothing wrong with emacs. emacs works fine. But it's probably a good idea to pick one or other other (vi or emacs), really concentrate on it, get it into your fingers. There is a topic about "favorite editor" that seems to indicate a strong preference for vi, so just possibly it might be a good idea to consider learning vi instead:
https://www.unix.com/unix-dummies-que...ryone-use.html
Yes, you just type cd, space, path, and then press Enter key. And the same thing for the file: emacs, space, then abc.cgi or whatever the name is.
Do's and dont's are just to make sure you don't mess anything up. For example, even besides being very counter-intuitive for new users, vi is infamous because it's easy to press the CAPS-LOCK key by mistake, and then all the commands are totally different and extremely confusing. Once it's happened a few times, the user knows about it. But the first time, it can be pretty scary.
Quote:
Once i open a .cgi file how do i understand the code?
This User Gave Thanks to hanson44 For This Post:
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LEARN ABOUT POSIX
info
INFO(1) User Commands INFO(1) NAME
info - read Info documents SYNOPSIS
info [OPTION]... [MENU-ITEM...] DESCRIPTION
Read documentation in Info format. Frequently-used options: -a, --all use all matching manuals -k, --apropos=STRING look up STRING in all indices of all manuals -d, --directory=DIR add DIR to INFOPATH -f, --file=MANUAL specify Info manual to visit -h, --help display this help and exit --index-search=STRING go to node pointed by index entry STRING -n, --node=NODENAME specify nodes in first visited Info file -o, --output=FILE output selected nodes to FILE -O, --show-options, --usage go to command-line options node --subnodes recursively output menu items -v, --variable VAR=VALUE assign VALUE to Info variable VAR --version display version information and exit -w, --where, --location print physical location of Info file The first non-option argument, if present, is the menu entry to start from; it is searched for in all 'dir' files along INFOPATH. If it is not present, info merges all 'dir' files and shows the result. Any remaining arguments are treated as the names of menu items relative to the initial node visited. For a summary of key bindings, type H within Info. EXAMPLES
info show top-level dir menu info info-stnd show the manual for this Info program info emacs start at emacs node from top-level dir info emacs buffers select buffers menu entry in emacs manual info emacs -n Files start at Files node within emacs manual info '(emacs)Files' alternative way to start at Files node info --show-options emacs start at node with emacs' command line options info --subnodes -o out.txt emacs dump entire emacs manual to out.txt info -f ./foo.info show file ./foo.info, not searching dir REPORTING BUGS
Email bug reports to bug-texinfo@gnu.org, general questions and discussion to help-texinfo@gnu.org. Texinfo home page: http://www.gnu.org/software/texinfo/ COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for info is provided by the texinfo-doc-nonfree package as a Texinfo manual. If this package is installed at your site, the command info info should give you access to the complete manual. (Or, if you have Emacs, M-x info will lead to the manual.) info 6.5 February 2018 INFO(1)