Utility Functions

utility_commands

# Use pdftk to concatenate files
pdftk file1.pdf file2.pdf cat output mergedfile.pdf

# TAB -Space problem in Pythom: fix in Vim
The problem is usually with mixup in tabs and spaces –

1. Apply following command in Vim to highlight tabs, spaces and other whitespace differently.
:set listchars=tab:>-,trail:-,eol:$ list
2. Apply the following to set correct width
:set shiftwidth=4 tabstop=4 expandtab
3. running
:retab
to fix the problem,Vim automatically fixes all indentation space and tab mix ups.

# To run applications Mac won't let you run (downloaded from internet ...)

/Applications $ xattr -d com.apple.quarantine Understand.app
/Applications $ xattr -d com.apple.quarantine /Applications/Understand.app/Contents/MacOS/Understand