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Fast way of finding lines in one file that are not in another?
... index by lineno
(NR!=FNR) { ss2[$0]++; } # file2, index by string
END {
for (ll=1; ll<=nl1; ll++) if (!(ll1[ll] in ss2)) print ll1[ll]
}
This stores the entire contents of file1 line by line in a line-number indexed array ll1[], and the entire contents of file2 line by line ...
Base64 Java encode and decode a string [duplicate]
I want to encode a string into base64 and transfer it through a socket and decode it back.
6 Answers
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HTML5 record audio to file
...; 0 ? s * 0x8000 : s * 0x7FFF, true);
}
}
function writeString(view, offset, string){
for (var i = 0; i < string.length; i++){
view.setUint8(offset + i, string.charCodeAt(i));
}
}
function encodeWAV(samples){
var buffer = new ArrayBuffe...
Create a branch in Git from another branch
... newbies, this is what a --no-ff merge looks like
– A__
Oct 6 '18 at 23:01
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show 10 more comments
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How to know that a string starts/ends with a specific string in jQuery?
I want to know if a string starts with the specified character/string or ends with it in jQuery.
6 Answers
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How do I lowercase a string in Python?
Is there a way to convert a string from uppercase, or even part uppercase to lowercase?
5 Answers
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How to silence output in a Bash script?
...
All output:
scriptname &>/dev/null
Portable:
scriptname >/dev/null 2>&1
Portable:
scriptname >/dev/null 2>/dev/null
For newer bash (no portable):
scriptname &>-
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Convert between UIImage and Base64 string
Does anyone know how to convert a UIImage to a Base64 string, and then reverse it?
24 Answers
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How to convert comma-separated String to List?
...ere any built-in method in Java which allows us to convert comma separated String to some container (e.g array, List or Vector)? Or do I need to write custom code for that?
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What special characters must be escaped in regular expressions?
...ular expression is quoted as a literal in a programming language, then the string or regex formatting rules of that language may require / or " or ' to be escaped, and may even require `\` to be doubly escaped.
– Jan Goyvaerts
Feb 6 '15 at 23:39
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