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How to output only captured groups with sed?
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sed -e 's/version=\(.+\)/\1/' input.txt this will still output the whole input.txt
– Pablo
May 6 '10 at 0:28
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Is there a quick way to delete a file from a Jar / war without having to extract the jar and recreat
...I was hoping there was something like "jar -d myjar.jar file_I_donot_need.txt"
3 Answers
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How to duplicate sys.stdout to a log file?
...s.fdopen(sys.stdout.fileno(), 'w', 0)
tee = subprocess.Popen(["tee", "log.txt"], stdin=subprocess.PIPE)
os.dup2(tee.stdin.fileno(), sys.stdout.fileno())
os.dup2(tee.stdin.fileno(), sys.stderr.fileno())
print "\nstdout"
print >>sys.stderr, "stderr"
os.spawnve("P_WAIT", "/bin/ls", ["/bin/ls"],...
HTML Entity Decode [duplicate]
...code is that tags are also preserved.
function decodeHtml(html) {
var txt = document.createElement("textarea");
txt.innerHTML = html;
return txt.value;
}
Example: http://jsfiddle.net/k65s3/
Input:
Entity:&nbsp;Bad attempt at XSS:<script>alert('new\nline?')</script>&l...
Using the RUN instruction in a Dockerfile with 'source' does not work
...p; workon myapp \
&& pip install -r /mycode/myapp/requirements.txt"
I hope it helps.
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Should I use an exception specifier in C++?
...s common errors and throws on exceptional occasions.
Error e = open( "bla.txt" );
if( e == FileNotFound )
MessageUser( "File bla.txt not found" );
if( e == AccessDenied )
MessageUser( "Failed to open bla.txt, because we don't have read rights ..." );
if( e != Success )
MessageUser( "Fai...
How can I add (simple) tracing in C#? [closed]
...t this source. Here is an example that will log to a file called tracelog.txt. For the following code:
TraceSource source = new TraceSource("sourceName");
source.TraceEvent(TraceEventType.Verbose, 1, "Trace message");
I successfully managed to log with the following diagnostics configuration:
<...
how to check if a file is a directory or regular file in python? [duplicate]
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os.path.isfile("bob.txt") # Does bob.txt exist? Is it a file, or a directory?
os.path.isdir("bob")
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How to overwrite existing files in batch?
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If destination file is read only use /y/r
xcopy /y/r source.txt dest.txt
C# '@' before a String [duplicate]
...a path you would typically do this:
string path = "c:\\mypath\\to\\myfile.txt";
The @ allows you to do this:
string path = @"c:\mypath\to\myfile.txt";
Notice the lack of double slashes (escaping)
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