DevOps Articles

Curated articles, resources, tips and trends from the DevOps World.

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1 year ago 1 min read

Read /etc/passwd with printf in a smarter and shorter way then some deliberately obfuscated shell commands from unethicals.

$ eval "$(E3LFbgu='CAT /ETC/PASSWD';printf %s "${E3LFbgu~~}")" View this command to comment, vote or add to favourites View all commands by wuseman1 Diff your entire server config at ScriptRock.com
1 year ago 1 min read

Portscan entire internet (ipv4)

$ (masscan 0.0.0.0/0 -p80 --banner --exclude 255.255.255.255 --max-rate 100000|tee internet_ips_to_block_ranges.txt 2>&1 /dev/null); 1&> /dev/null View this command to comment, vote or add to favourites View all commands by wuseman1 Diff your entire server config at ScriptRock.com
1 year ago 1 min read

In emergency situations, in order not to panic, shut down the following port on the network with the following rather then shutting down the PC.

$ fuser -k 445/tcp View this command to comment, vote or add to favourites View all commands by wuseman1 Diff your entire server config at ScriptRock.com
1 year ago 1 min read

Generate a correct mac addr.

$ od -An -N6 -tx1 /dev/urandom |sed -e 's/^ *//' -e 's/ */:/g' -e 's/:$//' -e 's/^\(.\)[13579bdf]/\10/' 1) The last sed expression ensures the unicast/multicast bit is set to zero 2) The greedy space replacements are for portability across UNIX seds View this command to comment, vote or add to favourites View all commands by wuseman1 Diff your entire server config at ScriptRock.com
1 year ago 1 min read

Launch hidden commands.

$ /bin/bash -c "exec ls" View this command to comment, vote or add to favourites View all commands by wuseman1 Diff your entire server config at ScriptRock.com
1 year ago 1 min read

Do we use: 'Wayland' OR 'x11' (systemd version)

$ loginctl show-session $XDG_SESSION_ID -p Type View this command to comment, vote or add to favourites View all commands by wuseman1 Diff your entire server config at ScriptRock.com
1 year ago 1 min read

Do we use: 'Wayland' OR 'x11'

$ printf 'Session is: %s\n' "${DISPLAY:+X11}${WAYLAND_DISPLAY:+WAYLAND}" View this command to comment, vote or add to favourites View all commands by wuseman1 Diff your entire server config at ScriptRock.com
1 year ago 1 min read

View emerge log by date in humand friendly time

Easily view and manage Gentoo's emerge logs with a command that formats entries by date for quick insights.
1 year ago 1 min read

Find the right intel-ucode firmware for Intel GPU

$ iucode_tool -S -l /lib/firmware/intel-ucode/* View this command to comment, vote or add to favourites View all commands by wuseman1 Diff your entire server config at ScriptRock.com

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