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Check existence of input argument in a Bash shell script
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It is:
if [ $# -eq 0 ]
then
echo "No arguments supplied"
fi
The $# variable will tell you the number of input arguments the script was passed.
Or you can check if an argument is an empty string or not like:
if [ -z "$1" ]
then
echo...
Can I click a button programmatically for a predefined intent?
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edited May 14 '13 at 10:01
laalto
131k3030 gold badges238238 silver badges266266 bronze badges
answe...
How to change the font size on a matplotlib plot
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craymichael
2,96611 gold badge1010 silver badges2121 bronze badges
answered Oct 10 '10 at 11:49
Herman SchaafHerman Schaaf
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Adding a cross-reference to a subheading or anchor in another page
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209
The expression "reST/Sphinx" makes the scope of the question unclear. Is it about reStructuredT...
Automating “enter” keypresses for bash script generating ssh keys
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edited Sep 8 '10 at 13:23
answered Sep 7 '10 at 14:42
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Sharing src/test classes between modules in a multi-module maven project
...groupId>
<artifactId>data</artifactId>
<version>1.0</version>
<type>test-jar</type>
<scope>test</scope>
</dependency>
I've used this approach on many occasions and it works well.
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Returning value that was passed into a method
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edited Mar 21 '13 at 10:31
Jakub Konecki
43.4k66 gold badges8282 silver badges123123 bronze badges
a...
Most efficient way to remove special characters from string
...om a string. Allowed characters are A-Z (uppercase or lowercase), numbers (0-9), underscore (_), or the dot sign (.).
24 An...
boost::flat_map and its performance compared to map and unordered_map
...e measurer itself.
u64 g_accuracy;
static u64 const errormeasure = ~((u64)0);
#ifdef _MSC_VER
#pragma intrinsic(__rdtsc)
inline u64 GetRDTSC()
{
int a[4];
__cpuid(a, 0x80000000); // flush OOO instruction pipeline
return __rdtsc();
}
inline void WarmupRDTSC()
{
int a[4];
__cpu...
How can I specify working directory for popen
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edited May 11 '16 at 17:09
Enrico
52866 silver badges1919 bronze badges
answered Nov 6 '09 at 3:10
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