In normal Bash script, $0 is the path to the script. However, when a script is sourced, such as
. a.sh
a.sh’s $0 does not give a.sh. How to get the a.sh inside a.sh?
Short answer: use ${BASH_SOURCE[0]}.
You can check this post for details and explanations: How to Get Bash Script’s Own Path.
How to reset the Disqus WordPress plugin installation? After deactivating/activating the Disqus WordPress plugin, the ID and others are the same as the old ones. What I need is to change the Disqus forum ID for a WordPress installation. Find all the tuples in the _option table of WordPress that contains “disqus” and delete them….
I find that gnuplot and ps2epsi do not work on Fedora 19. The same packages/scripts work for me on old installations on Fedora 17. I find this line is printed out multiple times: Fontconfig warning: “/etc/fonts/conf.d/50-user.conf”, line 14: reading configurations from ~/.fonts.conf is deprecated. I even tried an older version of gnuplot (4.2 patchlevel 6)….
When you write your master thesis (in Chinese) on windows, you may have following worries. a, Be afraid your master thesis is lost (or can not be accessed) when hard disk/udisk is broken (or something other viruses). b, Keep master thesis availability (7×24) and safety. c, Do not want anyone else to access it before…
Now, I have a running HDFS cluster storing lost files. I want to change its default replication factor. How to change it? What will happen after it is changed? For example, I change from 2 to 3. Will HDFS automatically re-replicate the data chunks? First, the replication factor is client decided. Second, the replication factor…
If your website uses a self-signed certificates, Chrome will show a warning every time and you need clicks to continue. In this post, I will introduce how to make Chrome accept self-signed certificates for sites on Linux. This post is made short on purpose and you need to search the Web and learn if you…
How to query installed files from a package and query which package one installed file is in will be introduced. Query installed files from a package $ rpm -ql package_name Query which package a installed file is in $ rpm -qf /full/path/to/installed/file Read more: How to find which package can be installed for a file,…