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Bash script - variable content as a command to run
...ueries.txt | wc -l)
$(perl test.pl test2 $count)
However, if you want to call your Perl command later, and that's why you want to assign it to a variable, then:
#!/bin/bash
count=$(cat last_queries.txt | wc -l)
var="perl test.pl test2 $count" # You need double quotes to get your $count value subs...
Gulp.js task, return on src?
...ent it doesn't address why there are many examples out there of tasks that call gulp.src(... but don't return it.
– Mark Amery
Apr 17 '15 at 11:13
...
How do I use Maven through a proxy?
...
For details of setting up a proxy for Maven, see the mini guide.
Essentially you need to ensure the proxies section in either the global settings ([maven install]/conf/settings.xml), or user settings (${user.home}/.m2/settings.xml) is configured correctly. It is better to do this in ...
What's the best practice for primary keys in tables?
... you have 1 billion rows with int or long pk's compared to using text or guid's. There's a huge difference!
– Logicalmind
Dec 3 '08 at 20:31
45
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Javascript object Vs JSON
...port these, you should include json2.js.
If you're using jQuery, you can call jQuery.parseJSON(), which will use JSON.parse() under the hood if it's supported and will otherwise fallback to a custom implementation to parse the input.
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Using HeapDumpOnOutOfMemoryError parameter for heap dump for JBoss
...umentation has to say:
By default the heap dump is created in
a file called java_pid.hprof in the
working directory of the VM, as in the
example above. You can specify an
alternative file name or directory
with the -XX:HeapDumpPath= option. For
example -XX:HeapDumpPath=/disk2/dumps
...
Get path from open file in Python
If I have an opened file, is there an os call to get the complete path as a string?
4 Answers
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Git submodule update
... out the specific version of the project, but not within a branch. This is called having a detached head — it means the HEAD file points directly to a commit, not to a symbolic reference.
The issue is that you generally don’t want to work in a detached head environment, because it’s easy to ...
Inserting multiple rows in mysql
...ationship) table :
// get data
$table_1 = get_table_1_rows();
$table_2_fk_id = 123;
// prepare first part of the query (before values)
$query = "INSERT INTO `table` (
`table_1_fk_id`,
`table_2_fk_id`,
`insert_date`
) VALUES ";
//loop the table 1 to get all foreign keys and put it in arra...
jQuery If DIV Doesn't Have Class “x”
...
If you need to do this outside of the selector for some reason, you can use .not( ".selected" ) and it'll work the same. Brilliant stuff.
– Joshua Pinter
Aug 27 '18 at 2:02
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