The command "if hash command 2> /dev/null; then echo 'true'; fi" failed. (Windows) · Issue #1622 · deployphp/deployer · GitHub
Linux - How to check if you are using BIOS or UEFI? $ ls -l /sys/firmware/efi &> /dev/null && echo "This is UEFI" || echo "This is BIOS" | Facebook
![bash - Why is Jenkins shell scripting giving other results than for the same command compared to my local results? - Stack Overflow bash - Why is Jenkins shell scripting giving other results than for the same command compared to my local results? - Stack Overflow](https://i.stack.imgur.com/30YVQ.png)
bash - Why is Jenkins shell scripting giving other results than for the same command compared to my local results? - Stack Overflow
![ro on Twitter: "Let's Learn Linux /dev today. - /dev - /dev/sda - /dev/tcp/<h>/<p> - /dev/udp/<h>/<p> - /dev/{null, zero, urandom} Linux has a quite a many hidden secrets. You can download it ro on Twitter: "Let's Learn Linux /dev today. - /dev - /dev/sda - /dev/tcp/<h>/<p> - /dev/udp/<h>/<p> - /dev/{null, zero, urandom} Linux has a quite a many hidden secrets. You can download it](https://pbs.twimg.com/media/FLkFai_VQAUJQ3a.jpg:large)