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How to find out line-endings in a text file?
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Unfortunately, I don't think vi can show those specific characters. You can try od -c <filename> which I believe will display \n or \r\n.
– Ryan Berger
Aug 25 '10 at 22:51
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Is there a way for non-root processes to bind to “privileged” ports on Linux?
...ou will need at least a 2.6.24 kernel
This won't work if your file is a script. (ie, uses a #! line to launch an interpreter). In this case, as far I as understand, you'd have to apply the capability to the interpreter executable itself, which of course is a security nightmare, since any program usi...
How do I use sudo to redirect output to a location I don't have permission to write to?
...ut. The redirection of the output is not performed by sudo.
There are multiple solutions:
Run a shell with sudo and give the command to it by using the -c option:
sudo sh -c 'ls -hal /root/ > /root/test.out'
Create a script with your commands and run that script with sudo:
#!/bin/sh
ls -hal...
How do I replace all line breaks in a string with elements?
...ional note: str.replace("\n", '<br />') (first argument is a regular string) will replace only first occurrence.
– Serge S.
Apr 15 '13 at 20:49
19
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Remove last character of a StringBuilder?
When you have to loop through a collection and make a string of each data separated by a delimiter, you always end up with an extra delimiter at the end, e.g.
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How to replace an entire line in a text file by line number
... are words from the line).
So, if the current line number is 4, print the string "different" but otherwise print the line unchanged.
In AWK, program code enclosed in { } runs once on each input record.
You need to quote the AWK program in single-quotes to keep the shell from trying to interpret t...
SSL Connection / Connection Reset with IISExpress
...y name "IIS Express Development Certificate". If not, delete it. Or if multiple, delete all.
On Visual Studio, select project and under property tab, enable SSL=true. Save, Build and Run. IIS Express will generate a new 'localhost' certificate.
Note: If it doesn't work, try these: make sure to di...
Programmatically update widget from activity/service/receiver
...t.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
// Use an array and EXTRA_APPWIDGET_IDS instead of AppWidgetManager.EXTRA_APPWIDGET_ID,
// since it seems the onUpdate() is only fired on that:
int[] ids = AppWidgetManager.getInstance(getApplication())
.getAppWidgetIds(new ComponentN...
Single vs double quotes in JSON
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JSON syntax is not Python syntax. JSON requires double quotes for its strings.
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How can I pretty-print JSON using Go?
...o turn into JSON. The question also mentions pretty-printing just any JSON string, and that's what I was trying to do. I just wanted to pretty-log some JSON from a POST request (specifically a CSP violation report).
To use MarshalIndent, you would have to Unmarshal that into an object. If you need...