How to fix exit status 127?
I attempted to follow this guide to run a Node application as a service. However, it is failing to start, with exit code 127. Is there any way to fix this? This is the journal.
sudo journalctl --follow -u serviceName -- Logs begin at Tue 2017-08-08 16:27:10 GMT. -- Aug 08 17:06:57 raspberrypi systemd[1]: Started serviceName. Aug 08 17:06:57 raspberrypi app.js[7234]: [46B blob data] Aug 08 17:06:57 raspberrypi systemd[1]: serviceName.service: main process exited, code=exited, status=127/n/a Aug 08 17:06:57 raspberrypi systemd[1]: Unit serviceName.service entered failed state. Aug 08 17:06:57 raspberrypi systemd[1]: serviceName.service holdoff time over, scheduling restart. Aug 08 17:06:57 raspberrypi systemd[1]: Stopping serviceName. Aug 08 17:06:57 raspberrypi systemd[1]: Starting serviceName. Aug 08 17:06:57 raspberrypi systemd[1]: serviceName.service start request repeated too quickly, refusing to start. Aug 08 17:06:57 raspberrypi systemd[1]: Failed to start serviceName. Aug 08 17:06:57 raspberrypi systemd[1]: Unit serviceName.service entered failed state. [Unit] Description=ServiceName After=network.target [Service] ExecStart=/home/pi/projects/ServiceName/app.js Restart=always User=root Group=root Environment=PATH=/usr/bin:/usr/local/bin Environment=NODE_ENV=production WorkingDirectory=/home/pi/projects/ServiceName [Install] WantedBy=multi-user.target 1. node is /home/pi/.nvm/versions/node/v7.8.0/bin/node 2. Filesystem 1K-blocks Used Available Use% Mounted on /dev/root 6166268 4446224 1383764 77% /
Process ID wait results in return code 127
Various values can be sent by different errors, allowing the calling process, typically the shell, to differentiate between them. The Dockerfile can be modified as follows and it will function properly after being built and executed. To test the distinction between the two, the following instructions can be used. The correct path can either be present by default in bash or only appear when the flag is utilized.
Return code 127 when waiting for process id
At present, I am executing an Ab Initio directive sourced from ksh script . The outcome of this operation is a return code with a value of 127.
air sandbox run $ -SOURCE_DATA_DT $ -AI_LOG_FILE $ >> $ 2>&1 & process_id=$ sleep 60 ps -e -oruser=UID -opid,ppid,vsz,args=CMD | grep "$" | grep -v grep | grep -v 'ps ' > $/cems/recovery/hltcheck/$_startup_mem.txt wait $ RC=$ [[ $ -eq 0 ]] || End ERROR "Pset execution of creating mfs failed" The code is not performing the desired action according to my understanding.
- The reason for the «127» return code is that the wait $ command is designed to return it when the process id given as an argument is not a background process.
- The incorrect process id is being waited for by process_id=$ command, as it receives the PID of the current shell script instance. Instead, process_id=$! should be used which assigns the PID of the last process that was put in the background.
Java throws Process exitValue: 127 when running, Or better, use only the shebang: Process proc = rt.exec ( new String [] ); The exit value of 127 is a special exit value, and tells …
$? = 127 in shell script? [duplicate]
Upon receiving a value of 127, I am perplexed as I was under the impression that it only yields a 1 for unsuccessful attempts and 0 for successful ones. Can someone explain the significance of a 127 value?
The previous command’s return value is represented by $? . Typically, a return value of 0 indicates success, while any other value indicates an error. Various errors may produce varying values, allowing the calling process (usually the shell) to differentiate between different types of errors.
For the definition of 127, refer to 127 Return code from $? .
Viewing pdfs with vim latex-suite: !start Preview shell, I have Mac OS X Lion, vim 7.3, and latex-suite. With a minimal .tex file I can compile a pdf from within vim using \\ll. However I can’t view the pdf with …
The command returned a non-zero code: 127
My attempt to construct the subsequent Dockerfile is unsuccessful as it encounters an error at RUN ocp-indent —help , which leads to ocp-indent: not found The command ‘/bin/sh -c ocp-indent —help’ returned a non-zero code: 127 being displayed.
FROM ocaml/opam WORKDIR /workdir RUN opam init --auto-setup RUN opam install --yes ocp-indent RUN ocp-indent --help ENTRYPOINT ["ocp-indent"] CMD ["--help"] After executing docker run -it bash -il , I collided with the preceding image and then ran ocp-indent —help successfully. I am uncertain about the reason for its failure. Can you share your thoughts on this matter?
The problem relates to PATH and the profile used. Upon using sh -c or bash -c , the profile files fail to load. However, bash -lc loads the profile and executes the command. If your profile has the required path configuration, then this command can be run successfully.
The problem with the initial response was its impracticality. This occurred during the time when we were experiencing it.
ENTRYPOINT ["/bin/bash", "-lc", "ocp-indent"] CMD ["--help"] The end result is /bin/bash -lc ocp-indent —help , but it requires /bin/bash -lc «ocp-indent —help» to function properly. Unfortunately, using a command in the entrypoint won’t achieve this. Therefore, a new entrypoint.sh file must be created.
Ensure that chmod +x entrypoint.sh is executed on the host and modify the Dockerfile as follows.
FROM ocaml/opam WORKDIR /workdir RUN opam init --auto-setup RUN opam install --yes ocp-indent SHELL ["/bin/sh", "-lc"] COPY entrypoint.sh /entrypoint.sh ENTRYPOINT ["/entrypoint.sh"] CMD ["--help"] After build and run it works
$ docker run f76dda33092a NAME ocp-indent - Automatic indentation of OCaml source files SYNOPSIS Unfortunately, there is no text provided to be rephrased. Please provide a text that needs to be rephrased.
You can effortlessly differentiate between the two by executing the commands provided below.
docker run -it --entrypoint "/bin/sh" ![]()
env docker run -it --entrypoint "/bin/sh -l" ![]()
env docker run -it --entrypoint "/bin/bash" ![]()
env docker run -it --entrypoint "/bin/bash -l" ![]()
env Either the correct path for your bash is set by default or you must use the -l flag to access it. If you need to change the default shell for your Docker image , follow the steps below.
FROM ocaml/opam WORKDIR /workdir RUN opam init --auto-setup RUN opam install --yes ocp-indent SHELL ["/bin/bash", "-lc"] RUN ocp-indent --help ENTRYPOINT ["/bin/bash", "-lc", "ocp-indent"] CMD ["--help"] Jcraft execute shell command returns exit status 127, 0. Your java application has not permission to execute the script. Add the account (which run your java application) to the group which has ownership …
Dockerfile: code 127 when trying to RUN shell-script
Using Docker Toolbox to run on a host with Windows 10 operating system.
An existing file called «Dockerfile» is present.
FROM 16.04 . RUN if [ some_condition ]; then ./foo.sh; fi . A file named «foo.sh» exists.
Presently, during the process of Docker image creation,
docker build -t name_of_the_image . Step 7/12 : RUN ./foo.sh ---> Running in e7e0703d3f8f /bin/sh: 1: ./foo.sh: not found The command '/bin/sh -c ./foo.sh' returned a non-zero code: 127 It appears that error code 127 could indicate that Docker is unable to detect bash. Can you provide any recommendations for resolving this issue?
Edit: The Dockerfile now includes the task of moving all files into the Docker.
FROM ubuntu:16.04 MAINTAINER Mr Anderson "mr@anderson.com" # set workdir COPY . /app WORKDIR /app # Run scripts RUN ./foo.sh In order to run the script, it is necessary to first copy the file into the container.
Ensure that you set a WORKDIR as you call the script using a relative path.
COPY ./foo.sh /app/foo.sh WORKDIR /dir RUN chmod +x /app/foo.sh RUN if [ some_condition ]; then ./foo.sh; fi Ensure that the script has the ability to be executed.
After some further investigation:
- Although CMD and RUN are both used to build Docker images, they differ in the way they execute commands. While RUN can be used repeatedly to construct the image layer-by-layer, CMD can only be executed once the image has been built. Therefore, relying solely on CMD over RUN may not be an optimal solution.
In my case the solution was to:
In brief, the final line present in the shell-script was inaccurate and required conversion to the Unix line endings.
Process — 127 Return code from $?, Value 127 is returned by /bin/sh when the given command is not found within your PATH system variable and it is not a built-in shell command. In other words, the system doesn’t understand your command, because it doesn’t know where to find the binary you’re trying to call. Share Improve this answer edited Jan 2, 2013 at 8:34 Code samplemand is found but is not executable, the return status is 126.If a command fails because of an error during expansion or redirection, the exit status is greater thanzero.Shell builtin commands return a status of 0 (true) if successful, and non-zero (false) if an erroroccurs while they execute. All builtins return an exit status of 2 to indicate incorrect usage.Feedback
Return code 127 in linux
Таблица C-1. «Зарезервированные» коды завершения
| Код завершения | Смысл | Пример | Примечание |
|---|---|---|---|
| 1 | разнообразные ошибки | let «var1 = 1/0» | различные ошибки, такие как «деление на ноль» и пр. |
| 2 | согласно документации к Bash — неверное использование встроенных команд | Встречаются довольно редко, обычно код завершения возвращается равным 1 | |
| 126 | вызываемая команда не может быть выполнена | возникает из-за проблем с правами доступа или когда вызван на исполнение неисполняемый файл | |
| 127 | «команда не найдена» | Проблема связана либо с переменной окружения $PATH, либо с неверным написанием имени команды | |
| 128 | неверный аргумент команды exit | exit 3.14159 | команда exit может принимать только целочисленные значения, в диапазоне 0 — 255 |
| 128+n | фатальная ошибка по сигналу «n» | kill -9 $PPID сценария | $? вернет 137 (128 + 9) |
| 130 | завершение по Control-C | Control-C — это выход по сигналу 2, (130 = 128 + 2, см. выше) | |
| 255* | код завершения вне допустимого диапазона | exit -1 | exit может принимать только целочисленные значения, в диапазоне 0 — 255 |
Согласно этой таблице, коды завершения 1 — 2, 126 — 165 и 255 [1] имеют предопределенное значение, поэтому вам следует избегать употребления этих кодов для своих нужд. Завершение сценария с кодом возврата exit 127, может привести в замешательство при поиске ошибок в сценарии (действительно ли он означает ошибку «команда не найдена» ? Или это предусмотренный программистом код завершения?). В большинстве случаев, программисты вставляют exit 1, в качестве реакции на ошибку. Так как код завершения 1 подразумевает целый «букет» ошибок, то в данном случае трудно говорить о какой либо двусмысленности, хотя и об информативности — тоже.
Не раз предпринимались попытки систематизировать коды завершения (см. /usr/include/sysexits.h), но эта систематизация предназначена для программистов, пишущих на языках C и C++. Автор документа предлагает ограничить коды завершения, определяемые пользователем, диапазоном 64 — 113 (и, само собой разумеется — 0, для обозначения успешного завершения), в соответствии со стандартом C/C++. Это сделало бы поиск ошибок более простым.
Обращение к переменной $?, из командной строки, после завершения работы сценария, дает результат, в соответствии с таблицей, приведенной выше, но только для Bash или sh . Под управлением csh или tcsh значения могут в некоторых случаях отличаться.
Примечания
Указание кода завершения за пределами установленного диапазона, приводит к возврату ошибочных кодов. Например, exit 3809 вернет код завершения, равный 225 .