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How to permanently export a variable in Linux?
... but restarting (as far as I know)
A Simple Solution
I've written a simple script for these procedures to do all those work. You just have to set the name and value of your environment variable.
#!/bin/bash
echo "Enter variable name: "
read variable_name
echo "Enter variable value: "
read variable_v...
How to generate a Dockerfile from an image?
...KDIR, ENTRYPOINT, CMD, and ONBUILD parts of the dockerfile.
The following script should work for you:
#!/bin/bash
docker history --no-trunc "$1" | \
sed -n -e 's,.*/bin/sh -c #(nop) \(MAINTAINER .*[^ ]\) *0 B,\1,p' | \
head -1
docker inspect --format='{{range $e := .Config.Env}}
ENV {{$e}}
{{end}}...
What is better, curl or wget? [closed]
...
I have never faced any problem shelling out WGET to Perl scripts to automate downloading stuff. However, with CURL, I frequently encounter error 18 - transfer closed with outstanding read data remaining (see stackoverflow.com/questions/1759956/…). This error I mostly get while tr...
How to create new folder? [duplicate]
....path functions use the local rules of the python installation running the script for path strings. Using os.path.join in all cases assures that your paths will be formed correctly for the platform the script is being run on.
– Alan Leuthard
Jun 13 '17 at 21:1...
jQuery, get html of a whole element [duplicate]
...entire html of a selected element not just it's contents. .html() uses javascripts innerHTML() method according to the documentation.
HTML:
...
What is $@ in Bash? [duplicate]
I reckon that the handle $@ in a shell script is an array of all arguments given to the script. Is this true?
2 Answers
...
How to switch databases in psql?
... @Ciwan I'm pretty sure you can't include psql commands in a SQL script file.
– Kenny Evitt
Aug 7 '18 at 20:51
...
How to Uninstall RVM? [duplicate]
...owing:
rvm implode
or
rm -rf ~/.rvm
And don’t forget to remove the script calls in the following files:
~/.bashrc
~/.bash_profile
~/.profile
And maybe others depending on whatever shell you’re using.
share
...
Linux command to translate DomainName to IP [closed]
...n' '/') instead. This is useful when you want to get-IP-by-domain in shell scripts.
– fuweichin
Dec 3 '18 at 12:21
...
jQuery - Detecting if a file has been selected in the file input [duplicate]
...the input and have that call a function to set the text in your span.
<script type="text/javascript">
$(function() {
$("input:file").change(function (){
var fileName = $(this).val();
$(".filename").html(fileName);
});
});
</script>
You may want to add IDs t...