bitsandbytes

# easy way to remove circular references when stringifying
var cache = [];
JSON.stringify(o, function(key, value) {
    if (typeof value === 'object' && value !== null) {
        if (cache.indexOf(value) !== -1) {
            // Circular reference found, discard key
            return;
        }
        // Store value in our collection
        cache.push(value);

bitsandbytes

# When you get this: "The authenticity of host 'HOSTNAME (IP)' can't be established.", 
# including a fingerprint, and then "Are you sure you want to continue connecting (yes/no)?".
# This is due to a hostname check previously accepted fingerprint/hostname. 
# This isn't helpful during automated tests, turn it off with this:
StrictHostKeyChecking=no

# get fingerprint of server
ssh-keygen -l -f /etc/ssh/ssh_host_rsa_key.pub

# The following useful in /etc/ssh/ssh_config

bitsandbytes

# Used for my Windows 10 bash terminal
# This tmux usually has remote tmux's nested in it

# change status bar background to yellow so it doesn't confuse me with remote session's color
set -g status-bg yellow
# set current window's background to green to match remote session's color
set -g window-status-current-bg green

# turn off C-b for this Windows session, since we always remote into another tmux ssession
set-option -g prefix C-n

bitsandbytes

# In CentOs 6, edit /etc/sysctl.conf
fs.inotify.max_user_watches = 524288
# Then make change take effect
sudo sysctl -p
# Then start up IntelliJ

bitsandbytes

Git Secrets

# how to find the commit that deleted a file
# find a file that you're not certain where it is anymore, if it's been deleted
git log --all --full-history -- "*MyFile.*"
  # find the path of the above
  git show --pretty="" --name-only <sha1-commit-hash>
  # now limit the above file's commits to just the exact path you want
  git log --all --full-history -- <path-to-file>
  # take the last commit, that'll show you the commit that deleted the file

bitsandbytes

# Conditionally set one parameter to another, or use default value
# If ${1} is unset or null, this will set SOME_VAR to "default_value" instead
SOME_VAR=${1:-default_value}
# If ${1} is unset or null, this will set SOME_VAR to the value of OTHER_VAR instead
SOME_VAR=${1:=OTHER_VAR}

# ^M
# in vim
# no really
# here's how to enter ^M so that you can remove it from a file