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Print all but the first three columns
...$(i-2)=$i; NF=NF-2; print $0}' | tr ' ' '-'
3-4-5-6-7
This is the fixed and parametrized version of larsr solution:
$ echo '1 2 3 4 5 6 7' |
awk '{for(i=n;i<=NF;i++)$(i-(n-1))=$i;NF=NF-(n-1);print $0}' n=4 | tr ' ' '-'
4-5-6-7
All other answers before Sep-2013 are nice but add extra spac...
How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
... a bash script for several subprocesses spawned from that script to finish and return exit code !=0 when any of the subprocesses ends with code !=0 ?
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Replace all 0 values to NA
...ays in ?'NULL',
NULL represents the null object in R
which is unique and, I guess, can be seen as the most uninformative and empty object.1 Then it becomes not so surprising that
data.frame(x = c(1, NULL, 2))
# x
# 1 1
# 2 2
That is, R does not reserve any space for this null object.2 Mea...
Build an ASCII chart of the most commonly used words in a given text [closed]
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LabVIEW's very happy in its hardware control and measurement niche, but really pretty awful for string manipulation.
– Joe Z
Jul 4 '10 at 6:23
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How do I terminate a thread in C++11?
...to terminate the thread correctly, or make it respond to a "terminate" command. I am interested in terminating the thread forcefully using pure C++11.
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What's the difference between %s and %d in Python string formatting?
I don't understand what %s and %d do and how they work.
12 Answers
12
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Exploitable PHP functions
...lowed. Rather, I'd like to have a grep -able list of red-flag keywords handy when searching a compromised server for back-doors.
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How to host a Node.Js application in shared hosting [closed]
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You can run node.js server on a typical shared hosting with Linux, Apache and PHP (LAMP). I have successfully installed it, even with NPM, Express and Grunt working fine. Follow the steps:
1) Create a new PHP file on the server with the following code and run it:
<?php
//Download and extract t...
Application Loader stuck at “Authenticating with the iTunes store” when uploading an iOS app
... submit an app to the iTunes store using Application Loader for three days and keep getting stuck at the "Authenticating with the iTunes store" step.
We have read many forums (including stackoverflow) and tried what was suggested:
...
How to set specific java version to Maven
On my machine I have two java versions installed: (1.6 and 1.7 installed manually by me). I need both of them for different projects. But for Maven I need 1.7, now my Maven uses 1,6 java version, how can I set Maven to use 1.7?
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