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Get line number while using grep
...les and the lines containing that string are print on the terminal. But is it possible to get the line numbers of those lines too??
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Format Instant to String
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Time Zone
To format an Instant a time-zone is required. Without a time-zone, the formatter does not know how to convert the instant to human date-time fields, and therefore throws an exception.
The time-zone can be added directly to the formatter using withZone().
DateTimeFormatt...
Installation error: INSTALL_PARSE_FAILED_MANIFEST_MALFORMED?
...re could be another reason for this error. The attribute
android:taskAffinity="string"
Should always start with a dot, like:
android:taskAffinity=".string"
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How to change the default collation of a table?
creates a table with the default collation latin1_general_ci ;
4 Answers
4
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How to see the CREATE VIEW code for a view in PostgreSQL?
...w to remember that!!), so searched for a more memorable command... and got it:
\d+ viewname
You can see similar sorts of commands by typing \? at the pgsql command line.
Bonus tip: The emacs command sql-postgres makes pgsql a lot more pleasant (edit, copy, paste, command history).
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How to write Unicode characters to the console?
I was wondering if it was possible, in a console application, to write characters like ℃ using .NET. When I try to write this character, the console outputs a question mark.
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@UniqueConstraint and @Column(unique = true) in hibernate annotation
...said before, @Column(unique = true) is a shortcut to UniqueConstraint when it is only a single field.
From the example you gave, there is a huge difference between both.
@Column(unique = true)
@ManyToOne(optional = false, fetch = FetchType.EAGER)
private ProductSerialMask mask;
@Column(unique = t...
XPath to find elements that does not have an id or class
How can I get all tr elements without id attribute?
4 Answers
4
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Get last result in interactive Python shell
... Ans or % to retrieve the last computed value. Is there a similar facility in the Python shell?
3 Answers
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CFLAGS vs CPPFLAGS
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The implicit make rule for compiling a C program is
%.o:%.c
$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
where the $() syntax expands the variables. As both CPPFLAGS and CFLAGS are used in the compiler call, which you use to defin...