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Different results with Java's digest versus external utilities
...
using System;
using System.IO;
using System.Security.Cryptography;
class Test
{
static void Main()
{
using (var md5 = MD5.Create())
{
string path = "c:/Windows/System32/Calc.exe";
var bytes = md5.ComputeHash(File.ReadAllBytes(path));
Cons...
Makefile variable as prerequisite
... variant
In my makefiles, I normally use an expression like:
deploy:
test -n "$(ENV)" # $$ENV
rsync . $(ENV).example.com:/var/www/myapp/
The reasons:
it's a simple one-liner
it's compact
it's located close to the commands which use the variable
Don't forget the comment which is impo...
How to split one string into multiple strings separated by at least one space in bash shell?
...or start with a dash. For example:
text="This is a test"
set -- junk $text
shift
for word; do
echo "[$word]"
done
This prints
[This]
[is]
[a]
[test]
share
|
improve th...
How to exclude a directory in find . command
...end into the skipped directory, but -not -path will be false whenever find tests each file.
Issues with -prune
-prune does what it's intended to, but are still some things you have to take care of when using it.
find prints the pruned directory.
TRUE That's intended behavior, it just doesn't d...
How do you tell if a string contains another string in POSIX sh?
...xpansion, so it works in Bash, Dash, KornShell (ksh), Z shell (zsh), etc.
test "${string#*$word}" != "$string" && echo "$word found in $string"
A functionalized version with some examples:
# contains(string, substring)
#
# Returns 0 if the specified string contains the specified substrin...
Mechanisms for tracking DB schema changes [closed]
...me of our tasks this way (pushing builds up to a staging server, deploying tested code to a production server) but we're still doing database updates manually. I would like to find or create a solution that allows us to work efficiently across servers with different environments while continuing to...
How do I run a Python script from C#?
...g if i pass c:\python26\python.exe as cmd and then c:\temp\code.py c:\temp\testfile.txt as args it should work?
– Inbar Rose
Aug 2 '12 at 14:12
...
Extract a regular expression match
...
One way would be this:
test <- regexpr("[0-9]+","aaa12456xxx")
Now, notice regexpr gives you the starting and ending indices of the string:
> test
[1] 4
attr(,"match.length")
[1] 5
So you can use that info with substr function
subst...
How to disable CSS in Browser for testing purposes
...
That's the fastest way to do it, I like that method.
– ling
Sep 24 '16 at 20:56
...
How do you use script variables in psql?
...ontrary to Bryce's report, it seems to work fine for me. CREATE TABLE test (name VARCHAR, age INT); INSERT INTO test (name, age) VALUES ('Jack', 21), ('Jill', 20); WITH vars AS (SELECT N'Jack' AS name, 21 AS age) SELECT test.* FROM test, vars WHERE test.name = vars.name and te...