tag

#control-flow

2 posts

Shell & TerminalDeep Dive October 4, 2026 8 min read

tcsh Control Flow: Make foreach, switch, and while Auditable

Write maintainable tcsh command files by understanding list iteration, expression rules, switch fall-through, loop control, and the limits of shell portability.

#tcsh#csh#control-flow

Shell & TerminalDeep Dive October 3, 2026 8 min read

Bash && and || Lists: Equal Precedence, Short-Circuiting, and Safer Branches

Reason about Bash AND-OR lists correctly, avoid rollback bugs from mixed operators, and preserve the intended status flow.

#bash#control-flow#exit-status