When I’m good about using and re-using functions in Bash I always end up passing arguments through from one function to another. For example:
function pie {
open /Applications/Emacs.app --args --debug-init "$@"
}
function pienthm {
EMACSNOTHEME=t pie --reverse-video "$@"
}
Horrible to admit but I keep forgetting the syntax even are taking copious notes on the GNU Bash manual.
BTW: hear, hear to including Bash-isms in every shell script!
If you want to lock and unlock your files from the command line using Finder instead of using chmod there here are two aliases to do it:
alias flock=’chflags -R uchg’
alias funlock=’chflags -R nouchg’
Ever wonder how wifi devices talk to each other when they don’t know that you are listening?
Continue reading “Map And Track Wi-Fi Networks You’re Not Connected To”
I can’t find the git 2.10 binary so I run
which git
/usr/local/bin/git
Excellent, found it.
And then I check it’s version to verify I am looking at the right version
/usr/local/bin/git –version
git version 2.21.0
Oops that isn’t what I wanted.
There must be another git getting loaded earlier in the search path.
Here is how to find out where all copies of git live
type -a git
git is /usr/local/bin/git git is /usr/local/bin/git git is /usr/bin/git
Look for the right git at version 2.10
/usr/local/bin/git –version
/usr/bin/git –version
git version 2.21.0 git version 2.14.3 (Apple Git-98)
I want the second one.
That is how to track down the location of a binary file on macOS that appears multiple times in the search path.
This page shows common errors that Bash programmers make. These examples are all flawed in some way.
You will save yourself from many of these pitfalls if you simply always use quotes and never use WordSplitting for any reason! Word splitting is a broken legacy misfeature inherited from the Bourne shell that’s stuck on by default if you don’t quote expansions. The vast majority of pitfalls are in some way related to unquoted expansions, and the ensuing word splitting and globbing that result.
All of us have fallen into one of these pits.
Why not use Python instead? 🙂
Oh yea, non-interactive shells 😠.
More on Quotes and Word Splitting.
Here are my questionable credentials to make this claim.
Sometimes Bash needs its debugger but it can’t find it. It looks like this:
/usr/share/bashdb/bashdb-main.inc: No such file or directory -bash: warning: cannot start debugger
For example when you start bashdb yourself with bash --debugger or set shopt -s extdebug. Another example is when your terminal turns it on.
Here is the fix that worked on my box:
brew install bashdb
bashhome=$(brew –prefix bash)
bdbhome=$(brew –prefix bashdb)
ln -s $bdbhome/share/bashdb $bashhome/share/bashdb
unset bashhome
unset bdbhome
See here.
macOS people maybe update now.
: The steps for this post were “http://buddylindsey.com/upgrade-bash-to-4-on-os-x/” but I can’t get the page to load anymore 😮😢.
IntelliJ Idea is best Java development environment out there. It can be an IDE or a text editor—configure it however you wish because whatever you do it will be simple. At its simplest you only need 4 settings to make it better out of the box: