Sponsored Content
Top Forums Programming Running java script from piped output Post 302983779 by hergp on Monday 17th of October 2016 06:59:11 AM
Old 10-17-2016
The shebang line does only work with languages that interpret the hash-sign as a comment. Javascript does not, so it thinks, that #!/usr/bin/js is a valid statement. By the way, if you feed your script via pipe into the interpreter, the shebang is useless anyway.

Remove the shebang line and it should work:

Code:
$ cat hull.js

console.log("Hello, world!");
$ cat hull.js | node
Hello, world!

This User Gave Thanks to hergp For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

perl... how to tell if a piped command is still running?

I'm using the fabulous perl. I need a way to tell when a piped call to "open" has completed. Can I do this with a command like <ShellPipe> ?? Reason behind this: I'm trying to write a backup script in perl! This script will download a certain file from my web server, to my computer. Now,... (0 Replies)
Discussion started by: boytheo
0 Replies

2. Shell Programming and Scripting

Running Shell Script from Java

Hi How can I call a .sh (shell script) from a java procedure? Is this possible at all? Please tell me. Thanks. Asty (3 Replies)
Discussion started by: Asty
3 Replies

3. Shell Programming and Scripting

Running a Java Programm with a (korn)shell-script

hey everyone, For my studies i had to write a javaprogram which reads 2 integers from the keyboard and then using the basic operations(addition, division etc) with them. so far no problem. but now i gotta make a shell-script which: runs the program(compiled with javac) #!bin/ksh java... (1 Reply)
Discussion started by: simlmf
1 Replies

4. Shell Programming and Scripting

Exclude Certain Entries from Piped or Redirected Output?

I want to execute a command something like: find / -name "jni.h" and I want to direct the output of that command to some type of filter that will leave out all the lines reporting inaccessible directories (permission unavailable). Is this a pipe or a redirect? For example, output like... (1 Reply)
Discussion started by: downplay
1 Replies

5. Shell Programming and Scripting

Running shell script from java

Hello All, Hope all is well. I was trying to scratch my head here with simple problem of running Shell script in Java. I tried to google and look through forums but was unable to understand how to solve it. Here is my simple Java class, which resides in different directory then my shell... (2 Replies)
Discussion started by: samshaw
2 Replies

6. Shell Programming and Scripting

Concatenate piped output and some var?

Hello, There is pipe chain and I want concacenate piped data with some variable: balh blah| ... $var1 What command I should use instead ... to concatenate piped output with $var1. I think I coud solve this using temp var - but could it be done in one line like sample above ? thanks... (4 Replies)
Discussion started by: vilius
4 Replies

7. Shell Programming and Scripting

find output seems to change when piped

Currently, i am trying to create a simple robust script that is intended to move the contents of a given source directory to a target directory. Optionally, the script should allow to either move the whole source dir content, or dotfiles only, or visible files only. I am aware the target directory... (0 Replies)
Discussion started by: shells_bells
0 Replies

8. Shell Programming and Scripting

Directing only part of a script's output to piped application

Is there a way to keep the output of a script displayed on the terminal when it's run by itself, but suspend part of that output and only have a specific part delivered when it's piped to another script or program? I'm thinking something like the following pseudocode: #!/bin/bash ... (1 Reply)
Discussion started by: trigg
1 Replies

9. Shell Programming and Scripting

script output should be piped to a file

hi i have a script named mount.sh under the location /data/scripts/ in my aix box i want this script this to be run everyday morning at 04:45 AM and the output of the script should be piped to a file how to do this ? (3 Replies)
Discussion started by: samsungsamsung
3 Replies

10. Shell Programming and Scripting

Cat piped output

Hello, How can I efficiently cat piped output with another file? > (awk command) | cat file1 (piped output) Thanks! (11 Replies)
Discussion started by: palex
11 Replies
Alien::Package::Rpm(3pm)				User Contributed Perl Documentation				  Alien::Package::Rpm(3pm)

NAME
Alien::Package::Rpm - an object that represents a rpm package DESCRIPTION
This is an object class that represents a rpm package. It is derived from Alien::Package. FIELDS
prefixes Relocatable rpm packages have a prefixes field. METHODS
checkfile Detect rpm files by their extention. install Install a rpm. If RPMINSTALLOPT is set in the environement, the options in it are passed to rpm on its command line. scan Implement the scan method to read a rpm file. unpack Implement the unpack method to unpack a rpm file. This is a little nasty because it has to handle relocatable rpms and has to do a bit of permissions fixing as well. prep Prepare for package building by generating the spec file. cleantree Delete the spec file. build Build a rpm. If RPMBUILDOPT is set in the environement, the options in it are passed to rpm on its command line. An optional parameter, if passed, can be used to specify the program to use to build the rpm. It defaults to rpmbuild. version Set/get version. When retreiving the version, remove any dashes in it. postinst postrm preinst prerm Set/get script fields. When retrieving a value, we have to do some truely sick mangling. Since debian/slackware scripts can be anything -- perl programs or binary files -- and rpm is limited to only shell scripts, we need to encode the files and add a scrap of shell script to make it unextract and run on the fly. When setting a value, we do some mangling too. Rpm maintainer scripts are typically shell scripts, but often lack the leading shebang line. This can confuse dpkg, so add the shebang if it looks like there is no shebang magic already in place. Additionally, it's not uncommon for rpm maintainer scripts to contain bashisms, which can be triggered when they are ran on systems where /bin/sh is not bash. To work around this, the shebang line of the scripts is changed to use bash. Also, if the rpm is relocatable, the script could refer to RPM_INSTALL_PREFIX, which is set by rpm at run time. Deal with this by adding code to the script to set RPM_INSTALL_PREFIX. arch Set/get arch field. When the arch field is set, some sanitizing is done first to convert it to the debian format used internally. When it's retreived it's converted back to rpm form from the internal form. AUTHOR
Joey Hess <joey@kitenet.net> perl v5.14.2 2011-08-05 Alien::Package::Rpm(3pm)
All times are GMT -4. The time now is 09:29 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy