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How to copy a directory using Ant
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@s1n This commands only copies all the contents of src_dir to ../new/dir and not the src_dir. How do we copy src_dir (directory) to another location?
– Pipalayan Nayak
Dec 3 '11 at 19:24
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Getting an “ambiguous redirect” error
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Bash can be pretty obtuse sometimes.
The following commands all return different error messages for basically the same error:
$ echo hello >
bash: syntax error near unexpected token `newline`
$ echo hello > ${NONEXISTENT}
bash: ${NONEXISTENT}: ambiguous redirect
$ echo hello ...
JavaFX Application Icon
...class.getResourceAsStream( "icon.png" ))); works.
– k_o_
Feb 13 '16 at 0:19
3
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Purge Kafka Topic
...--entity-name <topic name> --add-config retention.ms=1000 This also allows you to check the current retention period, e.g. kafka-configs --zookeeper <zkhost>:2181 --describe --entity-type topics --entity-name <topic name>
– RHE
Jun 2 '16 at ...
jQuery Validate - Enable validation for hidden fields
...ry, this could break an existing
setup. In the unlikely case that it actually does, you can fix it by
setting the ignore-option to “[]” (square brackets without the
quotes)."
To change this setting for all forms:
$.validator.setDefaults({
ignore: [],
// any other default option...
LINQ query on a DataTable
...s.Cast<DataRow>().Where(myRow => (int)myRow["RowNo"] == 1). Personally, I don't find the call to AsEnumerable() any more complicated than the call to Cast<DataRow>(). As far as I know, the performance is the same, so it's just a matter of preference.
– Collin K
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What is the difference between re.search and re.match?
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Now, enough talk. Time to see some example code:
# example code:
string_with_newlines = """something
someotherthing"""
import re
print re.match('some', string_with_newlines) # matches
print re.match('someother',
string_with_newlines) # won't match
print re.match('^someother', s...
How do I use boolean variables in Perl?
...isn't perfect, merely the best I've found. It's meant to be practical, not all-encompassing. Do note that value returned by your bool does stringify to 0. Also, you are discouraged from creating inconsistent overloads, and the values you return could be considered such. (e.g. a && can be opt...
Intent - if activity is running, bring it to front, else start a new one (from notification)
...recent task and click it, it will onResume(); Cant I onResume() programatically.
– user9599745
Jan 29 at 20:58
@Javene...
How to check whether a string is a valid HTTP URL?
...You may want to add more conditions to the uriResult.Scheme == ... Specifically https. It depends on what you need this for, but this small change was all I needed for it to work perfectly for me.
– Fiarr
Jan 22 '14 at 19:04
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