981sed, -i and the macOS

Doing a Search and Replace on the shell should not be difficult:

find . -name "*.html" -exec sed -i "s/searchPattern/replacePattern/g" {} +

However, on macOS this error message occurs:

sed: 1: "./aaa/a ...": invalid command code .
sed: 1: "./aaa/b ...": invalid command code .
sed: 1: "./aaa/c ...": invalid command code .
...

It turns out, on MacOS the -i parameter needs to be followed by an empty string:

find . -name "*.html" -exec sed -i "" "s/searchPattern/replacePattern/g" {} +

979Batch Rename Files with rename

Batch renaming files on the command line, in this case screenshot to more descriptive names:

brew install rename

Dry run:

rename -n -e 's/Screen Shot/w2_OpenSCAD/' -z  *.jpg

Replace, remove the -n flag:

rename -e 's/Screen Shot/w2_OpenSCAD/' -z  *.jpg

-z does sanitize the file name, replacing empty spaces with _.

978Changing default Screenshot Form in OSX

Default format is PNG, change it to any of the following:

defaults write com.apple.screencapture type JPG
defaults write com.apple.screencapture type TIFF
defaults write com.apple.screencapture type GIF
defaults write com.apple.screencapture type PDF
defaults write com.apple.screencapture type PNG

First encountered here.

976Git, Mac, SSH Keys and the OSX Keychain

When using git with a key that has a passphrase, you are asked the passphrase every time you pull/push. To make this a bit more convenient, add the key to the OSX Keychain.

Store key in OSX Keychain:

ssh-add -K ~/.ssh/my_key

Open .ssh/config

Host *
  UseKeychain yes
  AddKeysToAgent yes
  IdentityFile ~/.ssh/my_key

959Making a Bootable Installer for OSX

Straight from the Apple Support page: How to create a bootable installer for macOS https://support.apple.com/en-us/HT201372 High Sierra Page https://support.apple.com/en-us/HT208969 High Sierra App Store Link (hidden from standard Search) https://itunes.apple.com/us/app/macos-high-sierra/id1246284741?ls=1&mt=12

951Making a Bootable USB Stick – for Linux – in OSX

The Manjaro Wiki suggests to make a bootable USB Stick like that:

sudo dd bs=4M if=/path/to/manjaro.iso of=/dev/sd[drive letter] status=progress oflag=sync

While this might work on Linux, it does not work with dd on OSX/Darwin. Here are the error messages:

dd: bs: illegal numeric value
bs does not understand M
multiply manually, 4M -> 4 1024 1024 -> 4194304

sudo dd bs=4194304 if=/path/to.iso of=/dev/diskNr status=progress oflag=sync

dd: unknown operand status
dd on OSX does not understand the status flag
remove status flag

sudo dd bs=4194304 if=/path/to.iso of=/dev/diskNr oflag=sync

dd: unknown operand oflag
dd on OSX does not understand the oflag oflag
remove oflag flag

sudo dd bs=4194304 if=/path/to.iso of=/dev/diskNr

dd: /dev/disk4: Resource busy
Unmount disk before use, either via umount or in Disk Utility

And here we have it:

sudo dd bs=4194304 if=/path/to.iso of=/dev/diskNr

915SSH form OSX to Ubuntu – Locale Error

Problem: ‘std::runtime_error’ what(): locale::facet::_S_create_c_locale name not valid Aborted Solution: export LC_ALL="en_US.UTF-8" via http://martinhjelm.github.io/2015/06/14/Runtime-error-when-sshing-from-OSX-to-Ubuntu/

910Unresponsive Atom Editor on OSX

Atom is great, current, hackable and my current go-to editor, but from time-to-time it does like to open a certain directory. It keeps timing out, restarts of the Editor or the Computer don’t help. Clearing the window state helps. atom --clear-window-state

886Making a text file executable in OSX with .command

Appending .command to a text file in OSX executes it on double click.

my-file.txt content wget https://wordpress.org/latest.tar.gz
rename my-file.txt → my-file.command

811Fuji Xerox ApeosPort (DocuCentre) IV C3370 & OSX Lion

Setting up the ApeosPort C3370 in OSX Lion should not be difficult at all. Download the latest drivers, install, select and there you go. Right? Not quite. Selecting “FX ApeosPort-IV C3370 v3017.104 PS” or similar driver did not produce a workable connection to the printer. Rather it produced some annoying ‘beep’ sounds at the printer every time I was trying to print. But it did not produce any print-outs. Thanks to this I found that the solution is to select the following driver: “FX Print Drive for Mac OX v1.2.2” (or whatever the latest version might be). It’s working!