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The Concept of 'Hold space' and 'Pattern space' in sed
...ll, let's see what the command does.
$ echo {a..d} | tr ' ' '\n' # Prints from 'a' to 'd' in each line
a
b
c
d
$ echo {a..d} | tr ' ' '\n' | sed -n '1!G;h;$p'
d
c
b
a
It reverses the input like tac command does.
sed reads line-by-line, so let's see what happens on the patten space and the hold s...
Understanding $.proxy() in jQuery
From docs I understand that .proxy() would change the scope of the function passed as an argument. Could someone please explain me this better? Why should we do this?
...
How to optimize imports automatically after each save in IntelliJ IDEA
...swer works, but there is also the Intellij "save actions" plugin available from the JetBrains plugin repository that does that (as well as other things): Intellij Save Actions Plugin.
Installation
File > Settings > Plugins > Browse repositories... > Search 'Save Actions' > Category ...
Transactions in .net
...rst method and this method (encapsulation) does not know if will be called from a parent transaction or not.
– Eduardo Molteni
Mar 20 '09 at 14:14
1
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Reading a delimited string into an array in Bash
...accepted answer. The statement arr=($line) in the accepted answer suffers from globbing issues. For example, try: line="twinkling *"; arr=($line); declare -p arr.
– codeforester
Mar 20 '18 at 1:59
...
How to track child process using strace?
...
There is a perl script called strace-graph. Here is a version from github. It is packaged with crosstool-ng versions of compilers. It works for me even used cross platform.
ARM Linux box.
$ ./strace -f -q -s 100 -o app.trc -p 449
$ tftp -pr app.trc 172.0.0.133
X86_64 Linux box.
$...
Intersection of two lists in Bash
...indeed need to work with sorted list. And fortunately here we use ls which from ls Bash man page
Sort entries alphabetically if none of -cftuSUX nor --sort.
comm -12 <(ls one) <(ls two)
Alternative with sort
Intersection of two lists:
sort <(ls one) <(ls two) | uniq -d
symme...
How to declare a global variable in a .js file
...e in your script file. Here is another issue: The script file might be run from a context that is not the global context in some run-time environment.
It has been proposed to assign the global to window directly. But that is also run-time dependent and does not work in Node etc. It goes to show tha...
how to check if List element contains an item with a Particular Property Value
...ave a list item that is displaying "18.00" i don't know where it is coming from so i want to check wich attribute has this value? so basically , and similirally to this example i don't have the .size or .bar i want to figure it out
– Haithem KAROUI
Sep 17 '14 a...
How to bind multiple values to a single WPF TextBlock?
...argument to the converter (called value in the code), and the ID (a string from the question) as the second argument.
– Preet Sangha
May 28 '16 at 23:15
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