I've been trying to do some scripting, but I can't seem to understand this one error I have.
bash: /test.sh: No such file or directory
Basically, I want to run a script, test.sh using bash with the -c and -l options:
bash -l -c ~/opt/ct/src/test.sh
but this whole line is called from an Windows batch file (.cmd) located in the same directory as test.sh. I'm using 64-bit Cygwin (but I also have MinGW installed). I have ensured that the filepaths point to bash.exe (did a set PATH) and that it is the correct one, as is the shebang. I also did dos2unix on the script.
Any ideas on why? FYI the line I wrote worked perfectly fine in Cygwin.
I found the problem.
I knew I had added the path to MinGW a long time ago in the Windows Path variable. It seems that when I did bash, it was actually running the one from MinGW and not Cygwin (verified using which bash.exe).
I removed the path to MinGW and voila, it worked.
Moral of the story: Never put two paths that point to two identically named program in a Path variable!
Related
Getting "command not found" when trying to run shell script file. The file itself is stored in a directory, that is added to PATH, but still, terminal doesn't recognize it as shell script.
Here's the sequence I try:
tajimura/GAMIT% echo $PATH
/usr/local/bin:/usr/bin:/bin:/user/games:/usr/X11R6/bin:/usr/bin/X11:/usr/lib64/jvm/jre/bin:/home/tajimura/GAMIT/gamit/bin:/home/jaimura/GAMIT/kv/bin:/home/tajimura/GAMIT/com
tajirmura/GAMIT% ls /home/tajimura/GAMIT/com/sh_steup
/home/tajimura/GAMIT/com/sh_setup
tajimura/GAMIT% sh_setup
sh_setup: Command not found.
tajimura/GAMIT% sh sh_setup
sh: sh_setup: No such file or directory
tajimura/GAMIT% l /home/tajimura/GAMIT/com/sh_setup
-rwxr-xr-x 1 tajimura users 11109 Aug 20 2013 /home/tajimura/GAMIT/com/sh_setup
Here is a screenshot:
PS: Opensuse 12.1 here.
ADDED: I was executing it just fine during first 4 days, so I guess hashbang is not an issue. But I can't guarantee that workstation wasn't rebooted between my sessions, so maybe (just may be) -noexec is the cause. However, script sits in my home directory on hard disk, it's not a removable drive.
ADDED: The first five lines of sh_setup:
/home/tajimura% sed 5q /home/tajimura/GAMIT/com/sh_setup
#!/bin/csh -f
#
#doc Check and setup the GAMIT tables directory
#doc
#
Your script is either not executable (make it so with chmod +x sh_setup) or it specifies a broken (non-existing) interpreter on its hash-bang line (the first line of the sh_setup file, starting with #!).
Your sh sh_setup invocation fails because it doesn't use $PATH and you're in the wrong directory.
EDIT: Your script is clearly executable (I didn't spot this in your screenshot at first), which leaves us with a possibly incorrect interpreter.
I've found an unexpected solution of the problem. If I call the script under bash instead of csh everything is good.
I have written a simple Shell script named decBright.sh that decreases my screen brightness by a bit every time I run it. However, I do not want to open the terminal and execute bash decBright.sh every single time.
Instead, I want to create some kind of executable file that I can place on my Desktop, which will run my script when it is double-clicked. One answer I found here on the askUbuntu forums did not work for me.
Is there some other way to do it?
I am using Ubuntu 14.04 (Trusty Tahr)
An executable in linux is a file with the executable bit on. Thus you simply modify it with chmod:
chmod +x decBright.sh
Then you can run it with:
./decbright.sh
You can also run it by double-clicking in many graphical linux distributions.
You also better provide a "Shebang": the first line of your script should specify the "interpreter":
#!/bin/bash
Or any other interpreter (at the first line of your file).
I am creating a terminal program and cannot find out what the ending is for Linux. I know in windows it is .cmd. Any help would be great.
Thank you.
Yes, you can remove the .sh at the end and it should work, generally using ./cmd will get it to run. this goes for C programs as well. You do not need to give an extension for the object file, You could then add a path to your bash file and then you can execute it as a normal command.
Look here.
https://stackoverflow.com/a/8779980/2720497
You don't need a file extension on Linux, though typically, people use .sh (sh being short for 'shell').
You can run it one of two ways:
bash myscript.sh
or you can make the script itself executable and run it directly:
chmod a+x myscript.sh # make it executable
./myscript.sh # run it
Linux scripts' first line is typically #!/bin/bash which is the path to the specific shell used to run the script with the second method.
I created executables of a python script (via pyinstaller) for Mac, Windows and Linux. For Linux and Mac, I am running them in the shell since it doesn't have an own interface: just open a shell and type the name of the program.
I am wondering if there is a way to use certain file ending so if the user clicks on the program, it will be automatically executed in the shell or terminal. Alternatively, I would appreciate any other ideas of how to do this.
The way to do this is not to append a certain file ending, but, as pointed out in the comment, make the file executable (chmod +x <file>) and add the magic bytes to the beginning of the file that tell the system how to execute it.
The magic bytes are #! and are followed by the path to executable. So for a python script you would put something like the following at the top of the file:
#!/usr/bin/env python
Okay, now I finally found out the solution to my question. All you have to do to execute the program upon clicking on it in the file browser is to add the ending .command and make it executable
E.g., exampleprogram.command. Clicking on it will execute the program in the shell
I am developing an application on Beaglebone board with Angstrom distrubition fo Linux.I faced an interesting problem.
When I execute :
sh /home/root/Desktop/BBTCP/out/vehicleDetect 192.168.10.29
in terminal it says
/home/root/Desktop/BBTCP/out/vehicleDetect: /home/root/Desktop/BBTCP/out/vehicleDetect: cannot execute binary file
But when i execute
cd /home/root/Desktop/BBTCP/
and
sh out/vehicleDetect 192.168.10.29
it starts working??
What is the reason and why I can't run tha application with first configuration?
I think it is about the difference between ./ and sh. What are the differences?
My first guess would be that one of the folders in the path /home/root/Desktop/BBTCP is a link. If vehicleDetect is a script and it invokes itself recursively, then this link might be confusing it.
If that's not the case, try sh -x /home/root/Desktop/BBTCP/out/vehicleDetect and see what that prints.
Lastly, check what's in the folder /home/root/Desktop/BBTCP. There might be an executable sh in there. If your path contains ., a different shell might be executed.
Seems like /home/root/Desktop/BBTCP/out/vehicleDetect is invoking a binary file (an executable) that was built on a different architecture.
The main difference between sh and ./ is that ./ will attempt to execute the file itself as an executable, whereas sh will do that for you. It could be that there is a weird magic number at the start of the file, but you would expect sh to complain about that.
Best guess though it is a #! line at the start of the file which either contains invalid characters or refers to a strange file. Did you, for example, bring this script file from another operating system (like Windows) that has different line endings? I have seen similar effects when text file scripts have not been converted but just copied. Maybe you downloaded it in a strange format?
Check with od -xc /home/root/Desktop/BBTCP/out/vehicleDetect and look at the first line.