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The Fault Tolerant Shell -
The Fault-Tolerant Shell (ftsh) is a small language for system integration that makes failures a first class concept. Ftsh aims to combine the ease of scripting with very precise error semantics. It is especially useful in building distributed systems, where failures are common, making timeouts, retry, and alternation necessary techniques. ‎- ati
алсо, см. башевские set -e и set -u ‎- ati