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What are “Groovy” and “Grails” and what kinds of applications are built using them?
...wadays I hear a lot about "Groovy on Grails" and I want to know more about it:
4 Answers
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How to get xdebug var_dump to show full object/array
....3-vc9.dll) on WAMP . When I use var_dump on a large object or variable it does not show the full variable.
6 Answers
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How can I remove the first line of a text file using bash/sed script?
...p" "$FILE"
The && will make sure that the file doesn't get overwritten when there is a problem.
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Margin-Top push outer div down
... my wrapper div, but when I add a top margin to a h1 inside the header div it pushes the entire header div down. I realize this happens whenever I apply a top margin to the first visible element on a page.
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Bash ignoring error for a particular command
...hree will be never printed.
Also, I want to add that when pipefail is on,
it is enough for shell to think that the entire pipe has non-zero exit code
when one of commands in the pipe has non-zero exit code (with pipefail off it must the last one).
$ set -o pipefail
$ false | true ; echo $?
1
$ set...
Change Git repository directory location.
With Git/Github for Windows, if I have a repository with this directory: C:\dir1\dir2 , what do I need to do to move the repo files to C:\dir1 ? I can obviously physically copy and paste the files, but what do I need to do on the Git side?
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How does the Comma Operator work
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It would be equal to b.
The comma operator has a lower precedence than assignment.
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How to read a file into a variable in shell?
I want to read a file and save it in variable, but I need to keep the variable and not just print out the file.
How can I do this? I have written this script but it isn't quite what I needed:
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Best implementation for hashCode method for a collection
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The best implementation? That is a hard question because it depends on the usage pattern.
A for nearly all cases reasonable good implementation was proposed in Josh Bloch's Effective Java in Item 8 (second edition). The best thing is to look it up there because the author explain...
How do you create a random string that's suitable for a session ID in PostgreSQL?
...n session verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this?
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