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Get yesterday's date in bash on Linux, DST-safe
...-e flag.
When your script will be used in different environments, you can start the script with #!/bin/ksh or #!/bin/bash. You could also replace the \n by a newline:
echo "$(TZ=GMT+30 date +%Y-%m-%d)
$(TZ=GMT+20 date +%Y-%m-%d)" | grep -v $(date +%Y-%m-%d) | tail -1
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How do I SET the GOPATH environment variable on Ubuntu? What file must I edit?
... Thanks! What most users don't ever think is that there are people starting with linux and if there is no documentation saying what you said(Because everybody thinks it's a known fact) how would we learn/find the information?
– PlayHardGoPro
Feb 21 at 1...
Calculate difference between two dates (number of days)?
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Assuming StartDate and EndDate are of type DateTime:
(EndDate - StartDate).TotalDays
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php var_dump() vs print_r()
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"var_dump can't return any value"? Yes it can. Kinda. ob_start(); var_dump($var); $dump=ob_get_clean();
– Sinus Mackowaty
Sep 27 '19 at 19:58
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Printing everything except the first field with awk
...aved }'
Setting the first field to "" leaves a single copy of OFS at the start of $0. Assuming that OFS is only a single character (by default, it's a single space), we can remove it with substr($0, 2). Then we append the saved copy of $1.
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Convert Pixels to Points
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Starting with the given:
There are 72 points in an inch (that is what a point is, 1/72 of an inch)
on a system set for 150dpi, there are 150 pixels per inch.
1 in = 72pt = 150px (for 150dpi setting)
If you want to find ...
cannot load such file — bundler/setup (LoadError)
...4 application with Ruby 2.0, but I'm getting "Web application could not be started" and get this trace:
18 Answers
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SQL Server 2008 Windows Auth Login Error: The login is from an untrusted domain
...at my password had expired, I had just changed it via 'Ctrl-Alt-Del'. I restarted and it was fine again. Extremely annoying, changing the password also affected Outlook and OneDrive's ability to function.
– aSystemOverload
Jun 29 '16 at 15:04
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Total number of items defined in an enum
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Type2,
Type3,
NumberOfTypes
}
In the case where you're defining a start value other than 0, you can use NumberOfTypes - Type1 to ascertain the number of elements.
I'm unsure if this method would be faster than using Enum, and I'm also not sure if it would be considered the proper way to do...
How can I display an image from a file in Jupyter Notebook?
...vert mynotebook.ipynb --to slides --post serve) then the image path should start with / so that it is an absolute path from the web root, i.e. 
– ccpizza
Jun 28 '18 at 17:43
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