How to convert all PNG images to JPG

HOWTO convert all PNG images to JPG It’s easy when you find out how to. @ssh:~/im$ mogrify -format jpg *.png @ssh:~/im$ ls -lag drwxr-xr-x 2 customers 4096 2009-01-10 21:24 . drwxr-xr-x 14 customers 2048 2009-01-10 21:24 .. -rw-r–r– 1 customers 26368 2009-01-10 21:23 fresh05_-_Pryda_-_Muranyi_(Original_Mix).jpg -rw-r–r– 1 customers 6695 2009-01-10 21:06 fresh05_-_Pryda_-_Muranyi_(Original_Mix).png -rw-r–r– 1 customers 28320 […]

using chmod

Update Jan-2022 Why not to use chmod 777: https://pimylifeup.com/chmod-777/   Using chmod to Set File Permissions You can specify permissions for chmod using the letters u, g, and o, as symbolic code for the owner (“user”), group, and others (the class). This “symbolic mode” is easy to remember, since the symbols r, w, and x […]

Willekeurige paswoord genereren in Linux

Wat voorbeelden van de website HowToGeek: date | md5sum date +%s | sha256sum | base64 | head -c 32 ; echo < /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-32};echo; openssl rand -base64 32 tr -cd ‘[:alnum:]’ < /dev/urandom | fold -w30 | head -n1 or check the website. Zie howtogeek.com: http://www.howtogeek.com/howto/30184/10-ways-to-generate-a-random-password-from-the-command-line/