awk:begin_and_end
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| awk:begin_and_end [2021/01/06 15:11] – [Basic BEGIN Statement] peter | awk:begin_and_end [2022/06/13 09:40] (current) – peter | ||
|---|---|---|---|
| Line 13: | Line 13: | ||
| < | < | ||
| 10 | 10 | ||
| - | 11 | + | 11 |
| 12 | 12 | ||
| 13 | 13 | ||
| Line 30: | Line 30: | ||
| </ | </ | ||
| - | which will display something like: | + | returns: |
| < | < | ||
| NUMBER | NUMBER | ||
| </ | </ | ||
| + | |||
| + | ---- | ||
| This would be more useful when run as: | This would be more useful when run as: | ||
| Line 42: | Line 44: | ||
| </ | </ | ||
| - | which will display something like: | + | returns: |
| < | < | ||
| NUMBER ITEM QUANTITY PRICE | NUMBER ITEM QUANTITY PRICE | ||
| 1 10 Peter Terence | 1 10 Peter Terence | ||
| - | 2 11 Virginia | + | 2 11 Virginia |
| 3 12 Felix Devon | 3 12 Felix Devon | ||
| 4 13 David Bruce | 4 13 David Bruce | ||
| Line 53: | Line 55: | ||
| 6 48 Adam Winter | 6 48 Adam Winter | ||
| </ | </ | ||
| + | |||
| + | <WRAP info> | ||
| + | **NOTE: | ||
| * The **BEGIN** has allowed the header to be added to the output. | * The **BEGIN** has allowed the header to be added to the output. | ||
| * The **NR** variable used in the 2nd print numbers each line. It is a built-in variable of AWK. | * The **NR** variable used in the 2nd print numbers each line. It is a built-in variable of AWK. | ||
| + | |||
| + | </ | ||
| ---- | ---- | ||
| Line 61: | Line 68: | ||
| ===== Basic END Statement ===== | ===== Basic END Statement ===== | ||
| + | |||
| + | Assuming a file, **test2.txt**, | ||
| + | |||
| + | < | ||
| + | pens 10 1.99 | ||
| + | pencils | ||
| + | staplers | ||
| + | rulers | ||
| + | </ | ||
| Issue the following command: | Issue the following command: | ||
| <code awk> | <code awk> | ||
| - | awk ' | + | awk ' |
| </ | </ | ||
| - | which will display something like: | + | returns: |
| < | < | ||
| Total Value of Inventory: 174.65 | Total Value of Inventory: 174.65 | ||
| </ | </ | ||
| + | |||
| + | ---- | ||
| This would be more useful when run as: | This would be more useful when run as: | ||
| <code awk> | <code awk> | ||
| - | awk ' | + | awk ' |
| </ | </ | ||
| - | which will display something like: | + | returns: |
| < | < | ||
| Line 89: | Line 107: | ||
| Total Value of Inventory: 174.65 | Total Value of Inventory: 174.65 | ||
| </ | </ | ||
| + | |||
| + | <WRAP info> | ||
| + | **NOTE: | ||
| * The **END** has allowed a total line to be added to the output. | * The **END** has allowed a total line to be added to the output. | ||
| * It is only run at the end. | * It is only run at the end. | ||
| + | |||
| + | </ | ||
| ---- | ---- | ||
awk/begin_and_end.1609945899.txt.gz · Last modified: 2021/01/06 15:11 by peter