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How to keep environment variables when using sudo
...le by a feature of the bash builtin printf. The %q produces a shell quoted string. Unlike the parameter expansion in bash 4.4, this works in bash versions < 4.0
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How to format a DateTime in PowerShell
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The same as you would in .NET:
$DateStr = $Date.ToString("yyyyMMdd")
Or:
$DateStr = '{0:yyyyMMdd}' -f $Date
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Sublime - delete all lines containing specific value
...r people that don't want to write a regex - you can just select the search string, hit ctrl+cmd+g or pick "Quick Find All" from the menu, which will get you selections for each matching string; from there Home will move every selection cursor to the start of the line, shift+End will select every mat...
Java: How to set Precision for double value? [duplicate]
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This is an easy way to do it:
String formato = String.format("%.2f");
It sets the precision to 2 digits.
If you only want to print, use it this way:
System.out.printf("%.2f",123.234);
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@Resource vs @Autowired
...nd then:
@Inject @YourQualifier private Foo foo;
This makes less use of String-names, which can be misspelled and are harder to maintain.
As for the original question: both, without specifying any attributes of the annotation, perform injection by type. The difference is:
@Resource allows yo...
Can bash show a function's definition?
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Can also fail if the function contains a here-doc/here-string containing the curly-brace pattern
– Cheetah
Sep 28 '15 at 16:49
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How do you grep a file and get the next 5 lines
...or. By default SEP is double hyphen (--).
--no-group-separator
Use empty string as a group separator.
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Store output of subprocess.Popen call in a string
I'm trying to make a system call in Python and store the output to a string that I can manipulate in the Python program.
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Convert string date to timestamp in Python
How to convert a string in the format "%d/%m/%Y" to timestamp?
14 Answers
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typecast string to integer - Postgres
...hich has raw feeds in Varchar, I need to import a column in varchar into a string column. I tried using the <column_name>::integer as well as to_number(<column_name>,'9999999') but I am getting errors, as there are a few empty fields, I need to retrieve them as empty or null into the...