Logwatch on SystemD logs in RHEL/Centos 7
Modern versions of logwatch support journalctl logs, to enable this in Centos / RHEL 7 just install the FC27 RPM (dependencies are minimal) and configure like so.
Archive of posts filed under the shell category.
Negative lookahead assertion rule in procmail
Say in procmail you want a rule that puts subjects like: “Sale Alert: Howies” (or anything other than Howies) in your inbox but not “Sale Alert: Banana Republic” You can do this with a negative lookahead assertion like so: :0: * ^Subject: (You have sale alerts|Sale Alert):? *(?!Banana) $DEFAULT
Centos/Redhat dependencies for building python
Not exhaustive: readline-devel openssl-devel zlib-devel libffi-devel bzip2-devel
Lookup longitude/latitude on command line with lonlat
lonlat: a quick script to lookup longitude & latitude for a town on the command line: https://github.com/jamespo/commandmisc/blob/master/scripts/lonlat Requires python 3. Run with lonlat -m usage for how to setup, then lonlat -h.
tldr – simplified man pages
Find man pages too verbose and all you want are some examples? Try tldr – I installed the python client in a virtualenv Tip: you can get git subcommands docs by putting in the “proper” binary, eg tldr find git-checkout
alacritty terminal – for when you really need to scroll quickly
alacritty – GPU powered shell
gnome-terminal failing to launch on arch after upgrade to Gnome 3.22
With “Error creating terminal: Message recipient disconnected from message bus without replying” Try: sudo pacman -R –nodeps –nodeps vte3-notification sudo pacman -S vte3
cdx – switch to your other shell’s working directories
a quick shell script / bash function to switch to other working directories https://github.com/jamespo/commandmisc/blob/master/scripts/cdx.sh Example: (misc27)v $ ~ cdx 1) /home/james 2) /home/james/dev 3) /home/james/Maildir Select dir: 3 (misc27)v $ Maildir
Shell function to create menu from ~/.ssh/config
Install slmenu then put this function in your startup: ssm() { ssh $(awk ‘/Host / && !/*/ { print $2 }’ ~/.ssh/config | slmenu) }