2024-05-21

📅 Tuesday, May 21st, 2024

I will give you a definition of a proud man: he is a man who has neither vanity nor wisdom one filled with hatreds cannot be vain, neither can he be wise.

— John Keats

• ELF symbol interposition and RTLD_LOCAL
  • The LD_PRELOAD trick. Good to know how LD_PRELOAD can be used programmatically.
  • rr looks like an interesting enhancement to gdb, allowing us to replay failed executions deterministically.
• Somtimes, individual concepts are simply better explained in context, i.e., in a singular note as opposed to multiple atomic ones. For instance, it’s pretty hard to isolate the concept of GOT from PLT.
• lazy binding

MGT011A Lecture: Cash

• cash
  • for accounting, cash (also called “cash and cash equivalents”) includes: coins, currency, checks, money orders, bank accounts, etc
  • also includes liquid investments with maturity fewer than 90 days
• bank reconciliation
  • adjust the general ledger’s cash balance for timing & errors
  • produce a reconciled cash balance
  • internally, add adjusting journal entries to bring cash account to the reconciled cash balance
• how to do a bank reconciliation
  • take the ending balance from bank statement
    • add deposit in transit (cash that the company technically received/got paid, but haven’t cleared the bank yet)
    • add any corrections not yet made by the bank that will increase the balance
    • subtract outstanding checks (checks not yet processed/cleared by the bank)
    • subtract any corrections not yet made by the bank that will decrease the balance
    • total = reconciled cash balance
  • take the cash account balance from the general ledger
    • add items recorded as cash receipts (i.e., cash being earned) by the bank but not by the company’s books
    • add corrections not yet made by the company that will increase the ledger balance
    • subtract items recorded as cash disbursements by the bank but not by the company’s books
      • i.e., bank account services fees, autopay
    • subtract corrections not yet made by the company that will decrease the general ledger balance
      • i.e., Non-Sufficient Funds (NSF) check
    • total = reconciled cash balance
    • Everything under this bullet needs to be separate journal entries adjusting the general ledger cash account balance
  • The two totals should be the same.
• effective cash management
  • manage accounts receivable: faster cash collection from clients ease the paying of obligations
  • manage inventory levels: keep inventory level as low as possible without affecting sales
  • manage payables: delay payments (within reason) as long as possible without damanging relationships or incur penalties
  • invest excess cash: only hold cash necessary for operations; invest the excess in market for extra returns