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How can I grep for a string that begins with a dash/hyphen?
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grep '\-X'
grep "\-X"
One way to try out how Bash passes arguments to a script/program is to create a .sh script that just echos all the arguments. I use a script called echo-args.sh to play with from time to time, all it contains is:
echo $*
I invoke it as:
bash echo-args.sh \-X
bash echo-ar...
What is Unicode, UTF-8, UTF-16?
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UTF-8:
1 byte: Standard ASCII
2 bytes: Arabic, Hebrew, most European scripts (most notably excluding Georgian)
3 bytes: BMP
4 bytes: All Unicode characters
UTF-16:
2 bytes: BMP
4 bytes: All Unicode characters
It's worth mentioning now that characters not in the BMP include ancient script...
Getting an “ambiguous redirect” error
The following line in my Bash script
11 Answers
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Simple regular expression for a decimal with a precision of 2
... as [0-9] as I think it's easier to read.
Also, here is the simple Python script I used to check it:
import re
deci_num_checker = re.compile(r"""^[0-9]+(\.[0-9]{1,2})?$""")
valid = ["123.12", "2", "56754", "92929292929292.12", "0.21", "3.1"]
invalid = ["12.1232", "2.23332", "e666.76"]
assert len...
Get the last inserted row ID (with SQL statement) [duplicate]
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@marc_s - happy to be shown where my error is. Here is a script that recreates the scenario - wetransfer.com/downloads/…
– youcantryreachingme
Mar 26 at 5:28
1
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google chrome extension :: console.log() from background page?
If I call console.log('something'); from the popup page, or any script included off that it works fine.
11 Answers
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How to sleep for five seconds in a batch file/cmd [duplicate]
...e seconds, such as taking an image being displayed by the webcam. (Run the script and smile at the camera, for example.)
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What is an .axd file?
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An .axd file is a HTTP Handler file. There are two types of .axd files.
ScriptResource.axd
WebResource.axd
These are files which are generated at runtime whenever you use ScriptManager in your Web app. This is being generated only once when you deploy it on the server.
Simply put the ScriptRe...
How do I enumerate the properties of a JavaScript object? [duplicate]
How do I enumerate the properties of a JavaScript object?
14 Answers
14
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Microsecond timing in JavaScript
Are there any timing functions in JavaScript with microsecond resolution?
4 Answers
4
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