I'm following this tutorial: https://www.youtube.com/watch?v=mYnfix8ruAo
for compiling PDCurses and linking it to a CodeBlocks project, but I keep getting an error ('mingw32-make' is not recognized as an internal or external command, operable program or batch file.)
The thing is, I definitely have mingw installed properly, and have a path pointing to it in the system environment variables.
http://puu.sh/id6nC/3ab670cbdc.png
In the terminal, I tried the command twice without specifying a target file to make sure it's recognized, and it is. It's not until after I get to the point that I want to build the library that it stops recognizing it as a command for some reason. I'd really appreciate any help.
This isn't a PDCurses issue, it's a PATH issue. The PATH is an environment variable that the command-line shell uses to locate the executables you type as commands, if they aren't in the current directory, or shell built-ins. It's a list of directories, separated by semi-colons. Each directory is checked in turn, until a match is found.
Specifcally, your problem is this line:
path=c:\CodeBlocks\mingw\bin
Apparently, mingw32-make is not in that location. But, since it was found without that line, you clearly don't need the line -- at least not for that. So, just take it out.
Now, if it later turns out that you do need to add \CodeBlocks\mingw\bin to your PATH for some other reason, then the way to do it is like this:
path=%PATH%;c:\CodeBlocks\mingw\bin
This appends your new path to the existing PATH, instead of wiping out the existing PATH and replacing it with that directory alone.
Related
I am trying to run one of the example from Beej's Guide to Network Programming (https://beej.us/guide/bgnet/), specifically showip.c (The link to the program is here: https://beej.us/guide/bgnet/examples/showip.c). Using gcc, I've typed in
gcc -o showip showip.c
Then ran the program
showip www.example.net
and I get an error showip: command not found on the same directory where the code and the program is compiled at. I'm not sure why this is the case. I've even cloned the code from his GitHub and used makefile to compile the program and yet I'm getting the same error. What exactly am I doing it wrong here?
This is actually problem with how you're running the program.
On Linux systems (unlike Windows systems) an executable in the current directory is not by default searched by the shell for programs to run. If the given program does not contain a path element (i.e. there are no / characters in the name) then only the directories listed in the PATH environment variable are searched.
Since the current directory is not part of your PATH, prefix the command with the directory:
./showip www.example.net
Is the working directory on your path? Likely not.
Try ./showip
Since the program showip is not in your $PATH you have to tell
your shell that it's in the current directory:
./showip
Or add the current directory to your $PATH but it's a less secure
option:
PATH=:$PATH
or
PATH=.:$PATH
and run it as you're trying now:
showip
I don't know much about the command line but have been using it a lot lately. I was experiencing errors in a C application when trying to copy a file which didn't make sense; so, I tried using the the command line to make sure the code should work and get an error I don't understand.
copy "AH/Copy testing/media.enc" "AH/Copy testing/new_name.enc" returns the system cannot find the specified file. So, I tried type "AH/Copy testing/media.enc" and get the same error.
However, if change the directory to "AH/Copy testing", then type media.enc it works.
I tried the same statements on different files of the same and different extensions and they all work. For example, type "AH/Copy testing/fileName.enc" works.
Why would media.enc not be found unless the directory is set to its own first? If I copy media.enc to other locations, I get the same error unless the directory is first changed.
Thank you.
I am trying to execute a Makefile script and my Mac complains about 7zcat, although I already have 7z installed.
/bin/sh: 7zcat: command not found
Any thoughts on what's missing on my system? Thank you!
I have never used 7zcat before.
However, it looks like it needs to be installed on your system.
https://github.com/essentialkaos/7zcat
Also, after you download install 7zcat you have to give it execute permission with chmod. Finally, you have to execute it by calling its full path for example if you installed it to the directory you are in you would run ./7zcat file.7z or you would add the path to the file to your environment's $PATH variable.
I hope this helps. You might have to do some more research though.
When you open a Terminal window and type 7zcat and hit enter, what happens? Same message? Well, if you cannot use it, why should make be able to use it? Where and how have you installed 7z? Is the folder with the 7z binaries in your PATH? Since if it isn't, of course the command won't be found.
When the system shall run a command, it will search for this command in the directories stored in the PATH variable. Execute echo $PATH in terminal and you will get a colon separated list of directories; only these directories are searched for binaries. So either you must move your binaries to one of these (or put a symlink to one of these) or add the directory with these binaries to the PATH.
Yet there is no official 7z command line installer for MacOS, which brings me back to the original questions "Where and how have you installed 7z?" And are you sure that whatever you installed even includes a 7zcat?
I can't figure out how to add a directory to the system path. I found out that the command is something like this:
export PATH=$PATH:/my_path/to/my_dir
Example
I run the terminal in the path where my installation directory is located. In this case I'm talking about Play Framework. And I type:
export PATH=$PATH:/to/play20
It looks like nothing happens. In fact, when I type the command "play" (to execute the framework) I get:
-bash: play: command not found
Can someone please give me a decent step-by-step guide?
Execute the command “/to/play20/play help”. If this gives the expected output (help for the play command), then the executable is available, and the problem is in the shell path. If it does not give the expected output, then the executable is not working.
In the former case, ensure you are running the bash shell. (This is the default for recent versions of Mac OS X, but it may be changed for specific accounts.) To do this temporarily, execute the command “bash”. (When you want to exit the temporary shell, execute the command “exit”.) Then execute the export command again. (When the export command works, it changes the variable without displaying any output, so this is normal.) Check the spelling in the export command carefully.
In the latter case, execute “ls -ld /to/play20/play”. If you get a message that the file does not exist, then the executable is not installed correctly, and I cannot help you further. If the file is present, then it is not executable for some reason. This might be because you do not have permission to access it (especially permission to execute it, marked by “x” in certain places in the initial field of the ls output that may contain hyphens, “r”, “w”, and a few other letters) or that it is a symbolic link to a file that does not exist (indicated by an “l” in the first character of the ls output for the file). Lack of permission can be fixed by the chmod command, assuming you have appropriate permissions for changing permissions on the system. If the file is a symbolic link to another file, you may have a bad installation, or the target file may have permission issues (or be another symbolic link, and so on).
I just installed cygwin with C++ compiler and Perl on my windows machine. Whenever
trying to compile the C++ files with the makefile I get the following error:
>make
Cant find C:\Program on PATH
Not sure what path is exactly missing and where I can change it...
You should install cygwin in C:\, not in C:\Program Files\ - the latter often causes problems because of the space, as is the case here.
You've got a space in your PATH environment variable. Wherever you set the path, you might use an 8.3 filename instead of an extended filename, or you might encapsulate the section with spaces in quotes. For example: PATH=c:\windows;"c:\program files\foo"