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Compare integer in bash, unary operator expected
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Your problem arises from the fact that $i has a blank value when your statement fails. Always quote your variables when performing comparisons if there is the slightest chance that one of them may be empty, e.g.:
if [ "$i" -ge 2 ] ; then
......
Adding System.Web.Script reference in class library
I am currently moving code from my app_code folder to a class library. I have tagged several methods with [System.Web.Script.Serialization.ScriptIgnore] attributes. My class library cannot see this namespace. My add references dialog cannot see this namespace. How do I properly use this tag fr...
How to get all enum values in Java?
...ype of the enum type itself (if, say, the enum constant overrides a method from the enum type). getDeclaringClass() returns the enum type that declared that constant, which is what you want here.
– ColinD
Jan 20 '17 at 18:24
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How can I handle R CMD check “no visible binding for global variable” notes when my ggplot2 syntax i
...ot and data.table, and thus has tons of these warnings, which have kept me from noticing other more important warnings that really were problems I needed to fix.
– Ken Williams
Nov 25 '13 at 20:06
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In Android, how do I set margins in dp programmatically?
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From which package should I import that particular LayoutParams?
– stealthjong
Oct 4 '12 at 13:41
8
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Why doesn't println! work in Rust unit tests?
...t, but cargo does not recognize this flag for me (using the latest nightly from rustup.sh). Are you sure it should work?
– Jim Garrison
Aug 9 '14 at 2:35
44
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Why do python lists have pop() but not push()
... The tutorial seems to suggest that it simply pushes and pops from the end: "The list methods make it very easy to use a list as a stack, where the last element added is the first element retrieved (“last-in, first-out”). To add an item to the top of the stack, use append(). To ret...
IOCTL Linux device driver [closed]
...where you set up a file under /sys/ and read/write that to get information from and to the driver. An example of how to set this up:
static ssize_t mydrvr_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "%s\n", DRIVER_RELEASE);
}
static ...
GCC -g vs -g3 GDB Flag: What is the Difference?
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From the docs:
-g
Produce debugging information in the operating system's native format (stabs, COFF, XCOFF, or DWARF 2). GDB can work with this
debugging information. On most systems that use stabs format, -g
enables use of...
How do I have an enum bound combobox with custom string formatting for enum values?
...r display names without much hassle.
Look into the TypeConverter's ConvertFrom/ConvertTo methods, and use reflection to read attributes on your enum fields.
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