I'm writing a shell script for I can launch a program from the terminal using ./AppName but how can i get the return value either 0 or 1 to determine if the program executed correctly
on 03/05/2010 – Made popular on 03/05/2010
Found myself stuck on this seemingly trivial issue. I have this script which call other shell files to do their deeds. The shell files in turn call some other programs as well. My problem is that in two of these shell files, the control doesnt return to next command in script unless the Enter key is pressed.
I have several programs that i'm executing in a shell script:
I know that I can profile each individual program by editing the sourcecode, but I wanted to know if there was a way I could measure the total time executed by profiling the script itself. Is there a timer program that I can use for this purpose? If so, how precise is its measurement?
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.
I am logging in linux with my userName and using the pbrun su appName for changing permissions of files (owner of the files is appName). Now I am trying to do same within shell script but failing . Here is my code .
#Function to change permission of a file
pbrun su appName
chmod $pMode $fileName
Whenever the shell script is invoked by the scheduler the command execution return code is always captured as 0(Success).
If the same shell script is executed in command line via unix terminal, the command execution return code's are captured properly.
ls -ltr es_wrong_file ----> file not available in the filesystem
echo $? ----> return code $?
Hi there, I am converting my DVD collection (slowly) to my external hard drive with OGMRip. I do not want OGMrip using all my CPU cycles so I have it running in the background.At the moment, I have to launch a shell; use 'renice 19 -p $$' to set the priority of the shell then launch the program with 'taskset 0x1 ogmrip' which tells the program to just use CPU0.
I mostly feel ashamed having to ask this question, but I can't remember the answer or even think of the proper terms to do a Google search.When I launch a program from within a gui file manager (thunar in my case), the program launches and I can then close thunar and the program will continue to run.But if I launch a program from a terminal window, as soon as I shut down the terminal window,
A shell script is a script written for the shell, or command line interpreter, of an operating system. Typical operations performed by shell scripts include file manipulation, program execution, printing text etc.
Shell : In computing, a shell is a piece of software that provides an interface for users.