Master·Read and process text
sed: Replace text or select lines
Syntax
sed [-in] expression [file…]Options
-i- Modify files directly
-n- Output only explicitly selected lines
Examples
sed -i "s/DEBUG=true/DEBUG=false/" /etc/app.confUsage and sandbox support
Supported subset: s/OLD/NEW/g and n[,m]p. See the official manual for complex scripts and GNU/BSD differences.
Hands-on exercises
- Turn off debug modeMaster
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