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Run a string as a command within a Bash script
...g minus two parameters so I ended up with something like:
my_exe ()
{
mysql -sN -e "select $1 from heat.stack where heat.stack.name=\"$2\";"
}
This is something I use to monitor openstack heat stack creation. In this case I expect two conditions, an action 'CREATE' and a status 'COMPLETE' on ...
How to install 2 Anacondas (Python 2 and 3) on Mac OS
...r you can choose Python environment like below!
Sometimes only you can see root and your new Python environment, so root is your first anaconda environment!
Also this is Jupyter. You can choose python version like this!
I hope it will help.
...
Is mongodb running?
...r
service mongod status
to see if mongod is running (you need to be root to do this, or prefix everything with sudo). Please note that the 'grep' command will always also show up as a separate process.
check the log file /var/log/mongo/mongo.log to see if there are any problems reported
...
grep exclude multiple strings
...s particulary usefull when you have a long list of things to exclude.
vi /root/scripts/exclude_list.txt
Now add what you would like to exclude
Nopaging the limit is
keyword to remove is
Now use grep to remove lines from your file log file and view information not excluded.
grep -v -f /root/sc...
Semicolons superfluous at the end of a line in shell scripts?
... on terminal or in shell script.
See the below examples:
On terminal:
[root@server test]# ls;pwd;
On shell script:
[root@server test]# cat test4.sh
echo "Current UserName:"
whoami
echo -e "\nCurrent Date:";date;
[root@server test]#
But I am not agree with the comment that & is equi...
Repeat command automatically in Linux
...rs that are part of the command that you are watching, for example: watch mysql dbname -e \"show processlist\;\"
– pfrenssen
Oct 9 '13 at 11:43
...
What is time_t ultimately a typedef to?
...
[root]# cat time.c
#include <time.h>
int main(int argc, char** argv)
{
time_t test;
return 0;
}
[root]# gcc -E time.c | grep __time_t
typedef long int __time_t;
It's defined in $INCDIR/bits/types.h ...
How do you open an SDF file (SQL Server Compact Edition)? [closed]
...
Download and install LINQPad, it works for SQL Server, MySQL, SQLite and also SDF (SQL CE 4.0).
Steps for open SDF Files:
Click Add Connection
Select Build data context automatically and Default (LINQ to SQL), then Next.
Under Provider choose SQL CE 4.0.
Under Database with At...
What is the difference between “Flush Magento Cache” and “Flush Cache Storage” in magento's cache ma
...y the columns of a table (add or remove column) because magento executes a mysql DESCRIBE query and then saves the result in cache.
This cache is not cleared if you only click on "Flush Magento Cache" button.
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How to delete all the rows in a table using Eloquent?
... use Model::truncate() if you disable foreign_key_checks (I assume you use MySQL).
DB::statement("SET foreign_key_checks=0");
Model::truncate();
DB::statement("SET foreign_key_checks=1");
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