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Using sed, how do you print the first 'N' characters of a line?
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colrm x
For example, if you need the first 100 characters:
cat file |colrm 101
It's been around for years and is in most linux's and bsd's (freebsd for sure), usually by default. I can't remember ever having to type apt-get install colrm.
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How to get String Array from arrays.xml file
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You can't initialize your testArray field this way, because the application resources still aren't ready.
Just change the code to:
package com.xtensivearts.episode.seven;
import android.app.ListActivity;
import android.os.Bund...
Find all files with a filename beginning with a specified string?
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Use find with a wildcard:
find . -name 'mystring*'
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What are the differences between ipython and bpython?
...gthread for experimenting with PyGTK and -pylab for matplotlib.
direct invocation of shell commands. cd in IPython is quite useful.
Full readline library support -- I can use the keyboard shortcuts I am used to.
Module reload facility - You can do a deep reload of a module after you have changed yo...
Take diff of two vertical opened windows in Vim
I've have two files opened. They are opened in vertical mode, next to next. Can I instantly diff these two files without leaving or closing Vim ?
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Mongo: find items that don't have a certain field
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Be warned, $exist queries cannot use indexes (see mongodb.org/display/DOCS/…).
– Theo
Apr 19 '11 at 17:03
4
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How to skip “are you sure Y/N” when deleting files in batch files
I can't for the life of me remember how to bypass the annoying prompt are you sure? Y/N when deleting files.
4 Answers
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What exactly does git rebase --skip do?
... will not be able to apply your commit (but usually should skip it automatically, if the patch is exactly the same). Your own commit will be skipped, but the change will still exist in current HEAD, because it was already applied upstream.
You should really make sure you did not remove an important...
List All Redis Databases
...e 16 databases. Each database is identified by a number (not a name).
You can use the following command to know the number of databases:
CONFIG GET databases
1) "databases"
2) "16"
You can use the following command to list the databases for which some keys are defined:
INFO keyspace
# Keyspace
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Using GSON to parse a JSON array
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Problem is caused by comma at the end of (in your case each) JSON object placed in the array:
{
"number": "...",
"title": ".." , //<- see that comma?
}
If you remove them your data will become
[
{
"number": ...