annotate bin/intersection @ 175:d123ef7fdb82
working on implementing types and parts:
1, 2, 4 working, 3 not
| author |
Henry S. Thompson <ht@inf.ed.ac.uk> |
| date |
Mon, 03 Jul 2023 18:16:14 +0100 |
| parents |
464d2dfb99c9 |
| children |
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| rev |
line source |
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88
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1 #!/bin/sh
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2 # Output intersection (or, with -d, difference) of two files, line by line
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3 # No detection or special treatment of duplicates
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4 # Usage: intersection [-d] s1 s2
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5 # In the case of difference, which is ordered, interpretation is s1 - s2
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6 if [ "$1" = "-?" ]
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7 then
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8 echo "Usage: intersection [-d] s1 s2"
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9 exit 1
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10 fi
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11 if [ "$1" = "-d" ]
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12 then
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13 shift
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14 fgrep -x -v -f "$2" "$1"
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15 else
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16 fgrep -x -f "$1" "$2"
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17 exit 0
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18 fi
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19
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