This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.
Step 1 - Enable NBD on the Host
modprobe nbd max_part=8
spalladino
/ mysql-docker.sh
Created
December 22, 2015 13:47
Backup and restore a mysql database from a running Docker mysql container
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| # Backup | |
| docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql | |
| # Restore | |
| cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE | |
brenopolanski
/ merge-pdf-ghostscript.md
Last active
April 25, 2025 03:15
Merge multiple PDFs using Ghostscript
A simple Ghostscript command to merge two PDFs in a single file is shown below:
gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=combine.pdf -dBATCH 1.pdf 2.pdfInstall Ghostscript:
Type the command sudo apt-get install ghostscript to download and install the ghostscript package and all of the packages it depends on.
jwebcat
/ gist:5122366
Last active
January 23, 2025 05:43
— forked from lemenkov/gist:1674929
Properly download from github using wget and curl
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| wget --no-check-certificate --content-disposition https://github.com/joyent/node/tarball/v0.7.1 | |
| # --no-check-cerftificate was necessary for me to have wget not puke about https | |
| curl -LJO https://github.com/joyent/node/tarball/v0.7.1 |
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