I just made a .c file and compiled it with gcc in the terminal on OS X 10.8.2.
My syntax was gcc -o <filename> <sourcefile> and that was fine. Now I see I have an executable and file <filename> tells me as such, but I'm not sure how to actually run it beside double clicking the icon, /lame. When I try running the executable by just typing I get command not found, but I thought it was executable...?
Thank you.
EDIT: I"m so stupid, it was just open <filename>
Unix will only run commands if they are available on the system path, as you can view by the $PATH variable
echo $PATH
Executables located in directories that are not on the path cannot be run unless you specify their full location. So in your case, assuming the executable is in the current directory you are working with, then you can execute it as such
./my-exec
Where my-exec is the name of your program.
To run an executable in mac
1). Move to the path of the file:
cd/PATH_OF_THE_FILE
2). Run the following command to set the file's executable bit using the chmod command:
chmod +x ./NAME_OF_THE_FILE
3). Run the following command to execute the file:
./NAME_OF_THE_FILE
Once you have run these commands, going ahead you just have to run command 3, while in the files path.
Related
I just installed CD-HIT and followed these instructions:
Installation
Most CD-HIT programs were written in C++. Installing CD-HIT package is very simple:
download current CD-HIT at http://bioinformatics.org/cd-hit, for example cd-hit-2006-0215.tar.gz
unpack the file with ” tar xvf cd-hit-2006-0215.tar.gz --gunzip”
change dir by “cd cd-hit-2006”
compile the programs by “make”
you will have all cd-hit programs compiled
I followed these steps and indeed .exe files were made:
cdhit.c++ cdhit-est-2d.c++ clstr_select_rep.pl
cd-hit.exe cd-hit-est-2d.exe clstr_size_histogram.pl
cdhit.o cdhit-est-2d.o clstr_size_stat.pl
cdhit-2d.c++ cd-hit-para.pl clstr_sort_by.pl
cd-hit-2d.exe cdhit-utility.c++ clstr_sort_prot_by.pl
cdhit-2d.o cdhit-utility.h clstr_sql_tbl.pl
cd-hit-2d-para.pl cdhit-utility.o clstr_sql_tbl_sort.pl
cdhit-454.c++ ChangeLog clstr2tree.pl
cd-hit-454.exe clstr_cut.pl clstr2txt.pl
cdhit-454.o clstr_list.pl clstr2xml.pl
cd-hit-auxtools clstr_list_sort.pl doc
cdhit-common.c++ clstr_merge.pl FET.pl
cdhit-common.h clstr_merge_noorder.pl license.txt
cdhit-common.o clstr_quality_eval.pl make_multi_seq.pl
cdhit-div.c++ clstr_quality_eval_by_link.pl Makefile
cd-hit-div.exe clstr_reduce.pl plot_2d.pl
cdhit-div.o clstr_renumber.pl plot_len1.pl
cd-hit-div.pl clstr_rep.pl psi-cd-hit
cdhit-est.c++ clstr_reps_faa_rev.pl README
cd-hit-est.exe clstr_rev.pl usecases
cdhit-est.o clstr_select.pl
However when I typ: cd-hit-est in the cygwin command line, it will say: -bash: cd-hit.exe: command not found. I'm not able to figure out why this is happening. Even when I'm in the folder were the .exe files are located it still will give the same error.
When you try to run command without a path, bash tries to find the command name in each directory from the PATH environment variable.
Usually current directory "." is not in the PATH so you have to run command adding absolute or relative path before command name:
./cd-hit.exe
or
/absolute/path/to/your/cd-hit/program/cd-hit.exe
If you want to permanently run command cd-hit.exe from anywhere, just add the directory where cd-hit was compiled to any existing auto-loaded bash profile files:
.profile
.bashrc
.bash_profile
like
PATH=$PATH:/absolute/path/to/your/cd-hit/program
export PATH
I have project structure like this
project
|app
|script
inside script folder, there are files such as 'run'
run file content:
#!/bin/bash
npm start
I want to run the file 'run' while I'm at the root of my project by typing only command 'run'. How would you do this?
This is sh file. In order to execute sh file on linux this file has to be executable.
Make sure this file has X permission.
If there is no x permission on file simply execute the command
chmod +x run.sh
Then execute the file by typing
./run.sh
For windows you need to create .bat file.
I'm not quite sure what you want but assuming you need a way to execute a file from node.js, you can use child_process module and child_process.exec method to start any executable.
Assuming the run file in the script directory is executable (if not, run chmod +x script/run), it can be executed by running ./script/run.
If you want to avoid having to type the name of the directory (script), you could append the script directory to your PATH environment variable. If you’re running a POSIX compatible shell (not csh or tcsh), this can be done using:
export PATH="$PATH:/path/to/project/script"
This will allow you to run any executable command in the script directory without having to specify the name of the directory, e.g., run.
NB: be sure that there aren’t common command names in the script directory as these commands can be run from any directory (including outside the project directory) after it has been added to the PATH. That’s also why I suggest adding it to the end of the PATH (so it’s the last directory that’s searched for executable commands).
I am interested in running a programming language called MGS on my computer (obtainable here: http://www.spatial-computing.org/mgs/start). I am running Mavericks on mac.
The problem is that the mac executables download is a mac.opt file extension, and I have no idea what to do with it. I can't find relevant information on this file extension anywhere on the internet.
Does anyone know what I might need to do to make this run?
file says it is an executable:
$ file mgs64.mac.opt
mgs64.mac.opt: Mach-O 64-bit x86_64 executable
So, I'd just execute it in your Terminal. Open a Terminal window, chmod +x the program, and run it:
$ cd Downloads # or wherever you put the file
$ chmod +x mgs64.mac.opt
$ ./mgs64.mac.opt
I downloaded a "directory".tar.gz, extracted and unzipped the file to obtain "directory".
The installation files for this directory, were to run the make command in cygwin, to compile and pull out the files of the directory, which were written in C.
I attempt to run a command in cygwin, pfunc, which is a command supposed to be available after compiling and performing make, but cygwin says command not found.
I'm completely new to unix and cygwin.
The problem is that pfunc, if it exists, is not on your path.
The first step is to see if pfunc actually exists and if so, find out where. find / -xdev -name pfunc will give you the location of all files named pfunc. Obviously, if pfunc doesn't exist, you have another problem on your hands.
Next, you'll want to add this path to your bashrc. You can do that with:
echo "export PATH=$PATH:<the/path/find/gave/you> >> ~/.bashrc
Finally, you need to update your path in the current shell with source ~/.bashrc
K, I figured it out, there was a problem with the implementation of the program on cygwin, and for some reason find -name ....etc couldn't find the file. However, I found the location and reset the path to find the .exe file. Now everything looks good! thanks again!
I have a question I have been trying to fix for a while. I want to understand what's the difference between starting a script from the command line and making it executable and then running it from the Finder.
Because this is what I am experiencing;
I have a simple script called trash-files which contains this command:
trash ~/Downloads/*
When I run from the terminal it works as expected; however if I doubleclick the shell script in the finder I see this:
/Users/xx/Desktop/trash-files: line 1: trash: command not found
I hope anyone can tell me why this doesn't work as expected
trash is not a standard command in OS X. Is it something defined in your ~/.profile or a similar file? If so, these are not run for non-login shells, such as those created to run a script.
If you're using homebrew, you could run
brew install trash
which would install the necessary scripts to have the trash command work in the way you're expecting.
There is a folder in your home folder location called
.Trash
The "dot" in front of the folder name makes it hidden while searching for it in finder. You'll have to use Terminal to execute the following command:
cd ~/
ls -la
This will change the directory to the current logged in users home folder, then second command will list files and show hidden files. You can then run:
rm .Trash/*
This will remove everything inside the Trashcan on the dock.
So open TextEdit from the /Applications folder, go to "Format" and make it "Plain Text". Paste in the two lines below.
#!/bin/sh
rm ~/.Trash/*
Save the file as "emptyTrash.sh" (uncheck use txt extension). Save it to your Desktop or wherever you'd like. Then open Terminal, cd (change directory) to where the files is and run this command to make the script executable:
chmod +x emptyTrash.sh
Then you can execute the script by cd (changing directory) to path where the script is, and run:
./emptyTrash.sh
That's it.