How to execute a command whenever a file changes?
I want a quick and simple way to execute a command whenever a file changes. I want something very simple, something I will leave running on a terminal and close it whenever I'm finished working with that file. Currently, I'm using this: while read; do ./myfile.py ; done And then I need to go to that terminal and press Enter, whenever I save that file on my editor. What I want is something like thi
Why are tar.xz files 15x smaller when using Python's tar library compared to macOS tar?
Context I'm compressing ~1.3 GB folders each filled with 1440 JSON files and find that there's a 15-fold difference between using the tar command and Python's built-in tarfile library on macOS or Raspbian 10 (Buster) Minimal working example This script compares both methods: #!/usr/bin/env python3 from pathlib import Path from subprocess import call import tarfile fullpath = Path("/Users/user/Desk
PATH env variable on Mac OS X and/or Eclipse
When I print out the path in bash, it prints this: /usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin When I run System.out.println(System.getenv("PATH")); in Java running under Eclipse, it prints /usr/bin:/bin:/usr/sbin:/sbin How can I figure out why there is this discrepancy? I need to add /usr/local/bin to the PATH and make it available to Java apps under Eclipse. (note: I have made no m
best practice for access permission to users for apache tomcat
I have a Linux box being shared by various developers. They want to deploy their war files in apache tomcat which in shared location (/opt/tomcat). Since they don't have sudo access, I have to change the folder permission for tomcat directory. directory structure under /opt/tomcat is - bin/ conf/ lib/ logs/ temp/ webapps/ work/ What are the best practices in above situation - Most suitable access
How to get rid of prompts for credentials connecting to proxy Server officeimg.vo.msecnd.net in Office 2013?
I have experienced this issue mainly with Excel, Word and Powerpoint 2013, where there is constant pop-up box asking for login credentials as it tries to connect to officeimg.vo.msecnd.net I have searched and found one of the solution, to prevent Office from connecting to the internet (Options > Trust Center Settings > Allow Office to connect to internet). This solution worked for sometime, but am
How can I make Chrome stop caching redirects?
I am working on a web application that is using redirects (for pretty URLs). I am trying to debug logic in the way the redirects are working. However Google Chrome keeps remembering the redirects and even after I change the code, redirecting the same way. This is making it very hard to troubleshoot. For example if I redirect /this to /that, then change my code to NOT redirect /this anymore. Google
Clear 301-redirect cache in Firefox
Is it possible to clear only 301-redirects from Firefox's cache? CTRL+F5 doesn't do the job since you just reload the target without caching but do not clear the cached redirect. An option to disable caching of those redirects completely would be fine, too - but some way (possibly through an extension) to remove those cached redirects would be better. Note: I'm not looking for answers that disable
On OS X, why does `sudo ls` show hidden (dot) files?
With OS X Yosemite, using the following commands, I get the following: $ touch .a $ touch b $ /bin/ls b $ /bin/ls -A .a b $ sudo /bin/ls .a b It shows hidden files (that have names starting with a dot) when invoked by root and doesn’t show them (as expected) when running as a normal user. This differs from what ls on Linux (the one coming from coreutils) does. Why does ls behave this way?
Is it safe to store critical passwords in server environment variables?
I have a cluster of servers, each with configuration files that currently contain plain-text passwords for sensitive, mission-critical systems (message queues, data stores, and other services). Some people move critical passwords out of configuration files into an environment variable of the user accounts under which the server processes run. In this way, configuration files can be committed to ve
Does mailx send mail using an SMTP relay or does it directly connect to the target SMTP server?
Traditionally, Unix mail and derivatives (and many other Unix tools) use the /usr/bin/sendmail interface, provided by almost all mail transfer agents (MTAs – postfix, exim, courier, and of course sendmail). That is, the mail program doesn't speak any network protocol – it feeds the message to sendmail via stdin, and lets it handle actual delivery. (This goes back to the days when some mail used SM
How do I switch between Java 7 and Java 6 on OS X 10.8.2?
I don't think it's possible to switch JRE (runtime environments) see here: http://docs.oracle.com/javase/7/docs/webnotes/install/mac/mac-jre.html which states: Only one JRE can be installed. Installing a JRE removes the previously installed JRE. The JRE version used by the system can be determined in one of two ways: Workaround: I had a similar problem like you have with Minecraft with Wuala. Wher
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