Mercurial > hg > cc > cirrus_home
comparison bin/intersection @ 88:464d2dfb99c9
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| author | Henry S. Thompson <ht@inf.ed.ac.uk> |
|---|---|
| date | Tue, 13 Apr 2021 17:02:09 +0000 |
| parents | |
| children |
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| 87:b6a5999d8e06 | 88:464d2dfb99c9 |
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| 1 #!/bin/sh | |
| 2 # Output intersection (or, with -d, difference) of two files, line by line | |
| 3 # No detection or special treatment of duplicates | |
| 4 # Usage: intersection [-d] s1 s2 | |
| 5 # In the case of difference, which is ordered, interpretation is s1 - s2 | |
| 6 if [ "$1" = "-?" ] | |
| 7 then | |
| 8 echo "Usage: intersection [-d] s1 s2" | |
| 9 exit 1 | |
| 10 fi | |
| 11 if [ "$1" = "-d" ] | |
| 12 then | |
| 13 shift | |
| 14 fgrep -x -v -f "$2" "$1" | |
| 15 else | |
| 16 fgrep -x -f "$1" "$2" | |
| 17 exit 0 | |
| 18 fi | |
| 19 |