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Retrieve the commit log for a specific line in a file?
...y easy way to do this is by using vim-fugitive. Just open the file in vim, select the line(s) you're interested in using V, then enter
:Glog
Now you can use :cnext and :cprev to see all the revisions of the file where that line is modified. At any point, enter :Gblame to see the sha, author, and ...
Are PostgreSQL column names case-sensitive?
...ife: ("first_Name")
So, yes, PostgreSQL column names are case-sensitive:
SELECT * FROM persons WHERE "first_Name" = 'xyz';
Also fix the incorrect double-quotes around 'xyz'. Values (string literals) are enclosed in single quotes.
Read the manual here.
My standing advice is to use legal, lower...
How to Turn Off Showing Whitespace Characters in Visual Studio IDE
...and later versions
Ctrl + P to open and then writing Whitespace,
you can select the View: Toggle Render Whitespace
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Replace None with NaN in pandas dataframe
... dtype fields in your df and then replace the None:
obj_columns = list(df.select_dtypes(include=['object']).columns.values)
df[obj_columns] = df[obj_columns].replace([None], np.nan)
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Input size vs width
...bly preferable to the inline style attribute.
You still need size for <select multiple> to get the height to line up with the options properly. But I'd not use it on an <input>.
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Regex: Specify “space or start of string” and “space or end of string”
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The easier way to exclude the group selection from the match is (?:^|\s)
– user2426679
Oct 22 '15 at 16:48
7
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Track all remote git branches as local branches
...it branch --set-upstream-to $remote/$brname $brname;
done
it will only select upstream branches from the remote you specify in the remote variable (it can be 'origin' or whatever name you have set for one of the remotes of your current Git repo).
it will extract the name of the branch: origin/a/...
How to find where gem files are installed
...an check it from your command prompt by running gem help commands and then selecting the proper command:
kirti@kirti-Aspire-5733Z:~$ gem help commands
GEM commands are:
build Build a gem from a gemspec
cert Manage RubyGems certificates and signing settin...
Why is a “GRANT USAGE” created the first time I grant a user privileges?
...henticate. An user with USAGE privilege can run certain SQL commands like 'select 1+1' and 'show processlist'.
– Mircea Vutcovici
Feb 26 '15 at 16:10
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Nohup is not writing log to output file
... Works like a charm. I also think it is a better answer than the one selected as correct. Could you please mark this as correct to not confuse others?
– Ondrej Burkert
May 13 '15 at 14:50
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