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ltrim(), rtrim(), and trim() in awk
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| function ltrim(s) { sub(/^[ \t\r\n]+/, "", s); return s } | |
| function rtrim(s) { sub(/[ \t\r\n]+$/, "", s); return s } | |
| function trim(s) { return rtrim(ltrim(s)); } | |
| BEGIN { | |
| # whatever | |
| } | |
| { | |
| # whatever | |
| } | |
| END { | |
| # whatever | |
| } |
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