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ggplot2 legend to bottom and horizontal
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147
If you want to move the position of the legend please use the following code:
library(reshap...
Linux bash: Multiple variable assignment
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First thing that comes into my mind:
read -r a b c <<<$(echo 1 2 3) ; echo "$a|$b|$c"
output is, unsurprisingly
1|2|3
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Iterating over each line of ls -l output
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Set IFS to newline, like this:
IFS='
'
for x in `ls -l $1`; do echo $x; done
Put a sub-shell around it if you don't want to set IFS permanently:
(IFS='
'
for x in `ls -l $1`; do echo $x; done)
Or use while | read instead:
ls -l $1 | while read x; do echo $x; done
One more ...
How do I verify/check/test/validate my SSH passphrase?
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123
You can verify your SSH key passphrase by attempting to load it into your SSH agent. With Open...
Is there a better way to dynamically build an SQL WHERE clause than by using 1=1 at its beginning?
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158
Save the conditions in a list:
List<string> conditions = new List<string>();
if ...
How do I output text without a newline in PowerShell?
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18 Answers
18
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Error “initializer element is not constant” when trying to initialize variable with const
...over, in C language, the term "constant" refers to literal constants (like 1, 'a', 0xFF and so on), enum members, and results of such operators as sizeof. Const-qualified objects (of any type) are not constants in C language terminology. They cannot be used in initializers of objects with static sto...
MySql Table Insert if not exist otherwise update
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144
Jai is correct that you should use INSERT ... ON DUPLICATE KEY UPDATE.
Note that you do not n...
In C, how should I read a text file and print all strings
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132
The simplest way is to read a character, and print it right after reading:
int c;
FILE *file;...
In Maven 2, how do I know from which dependency comes a transitive dependency?
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132
To add to @David Crow, here's a dependency:tree example from the Maven site:
mvn dependency:t...