Expired50% confidenceFactExact time
Command Substitution is one of the core features of Unix Shell, expressed in Bash as the $(command) syntax or backtick syntax.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Claude Code Can't Remember Your Progress? Build a Progress Skill to Fix It
bilibili路过的阿诚6/5/2026
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