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Search for string and get count in vi editor
I want to search for a string and find the number of occurrences in a file using the vi editor.
8 Answers
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Cost of len() function
...ength of the element - very fast) on every type you've mentioned, plus set and others such as array.array.
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How to check Oracle database for long running queries
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from v$sqltext_with_newlines t,V$SESSION s
where t.address =s.sql_address
and t.hash_value = s.sql_hash_value
and s.status = 'ACTIVE'
and s.username <> 'SYSTEM'
order by s.sid,t.piece
/
This shows locks. Sometimes things are going slow, but it's because it is blocked waiting for a lock:
s...
Logging levels - Logback - rule-of-thumb to assign log levels
..., so my answer is biased towards looking at it from a production support standpoint; that said, we assign roughly as follows:
error: the system is in distress, customers are probably being affected (or will soon be) and the fix probably requires human intervention. The "2AM rule" applies here- if...
Colorized Ruby output to the terminal [closed]
Using Ruby, how can I perform background and foreground text colorization for output in the terminal?
11 Answers
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Is there a difference between /\s/g and /\s+/g?
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\s means "one space", and \s+ means "one or more spaces".
But, because you're using the /g flag (replace all occurrences) and replacing with the empty string, your two expressions have the same effect.
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What is the best way to test for an empty string in Go?
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Both styles are used within the Go's standard libraries.
if len(s) > 0 { ... }
can be found in the strconv package: http://golang.org/src/pkg/strconv/atoi.go
if s != "" { ... }
can be found in the encoding/json package: http://golang.org/src/pkg/encoding/...
Remove underline from links in TextView - Android
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You can do it in code by finding and replacing the URLSpan instances with versions that don't underline. After you call Linkify.addLinks(), call the function stripUnderlines() pasted below on each of your TextViews:
private void stripUnderlines(TextView...
How to convert a char to a String?
I have a char and I need a String . How do I convert from one to the other?
12 Answers
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Execute bash script from URL
...nately, leave off the initial redirection on yours, which is redirecting standard input; bash takes a filename to execute just fine without redirection, and <(command) syntax provides a path.
bash <(curl -s http://mywebsite.com/myscript.txt)
It may be clearer if you look at the output of ec...