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Add text after first line of file
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| # Inspired by Stack Overflow Question 19151954 | |
| LINE_NO = `grep -n require $1 | tail -1 | cut -d: -f1` | |
| sed ''"${LINE_NO}"' a \ | |
| text_to_add | |
| ' $1 |
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| # Stack Exchange Question #99350 | |
| sed '1 a \ | |
| stuff_to_add | |
| ' $FILE_NAME | tee $FILE_NAME |
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