我想找到所有包含关键字File.createTempFile
和行号的Java文件。这就是我所做的:
$ find . -name "*.java" | xargs grep -n "File.createTempFile"
./nuxeo-studio-test/src/test/java/com/nuxeo/studio/web/StudioServletTest.java:162: File tmpFile = File.createTempFile(jarEntryName, null, Environment.getDefault().getTemp());
./nuxeo-studio-ui/src/main/java/com/nuxeo/studio/core/builders/WorkflowFeatureBuilder.java:421: tmp = File.createTempFile(".workflow-to-zip", ".tmp", workspace.getRoot());
./nuxeo-studio-ui/src/test/java/com/nuxeo/studio/core/backup/TestS3Backup.java:101: File tempFile = File.createTempFile(RandomStringUtils.randomAlphabetic(5), ".tmp");
./nuxeo-studio-ui/target/classes/com/nuxeo/studio/core/builders/WorkflowFeatureBuilder.java:421: tmp = File.createTempFile(".workflow-to-zip", ".tmp", workspace.getRoot());
./nuxeo-studio-web/src/main/java/com/nuxeo/studio/web/v1/ProjectResource.java:191: File zip = File.createTempFile(filename + "-", ".zip", tempRepo);
但是,我发现这个结果太长,无法阅读。我想只保留文件路径和行号。这是预期结果:
./nuxeo-studio-test/src/test/java/com/nuxeo/studio/web/StudioServletTest.java:162
./nuxeo-studio-ui/src/main/java/com/nuxeo/studio/core/builders/WorkflowFeatureBuilder.java:421
./nuxeo-studio-ui/src/test/java/com/nuxeo/studio/core/backup/TestS3Backup.java:101
./nuxeo-studio-ui/target/classes/com/nuxeo/studio/core/builders/WorkflowFeatureBuilder.java:421
./nuxeo-studio-web/src/main/java/com/nuxeo/studio/web/v1/ProjectResource.java:191
有人可以教我怎么做吗?
答案1
有了pcregrep
,你可以这样做:
pcregrep --include='\.java$' -rHno1 '()File\.createTempFile' .
输出将如下所示:
./path/to/file.java:12:
如果模式在一行中出现多次,则输出的行数也会相同。如果您不想这样,可以将其更改为:
pcregrep --include='\.java$' -rHno1 '^().*?File\.createTempFile' .
答案2
这是一种方法awk
:
find . -name '*.java' -exec awk '/PATTERN/{print FILENAME,FNR}' {} +
或者,如果您想模拟grep
的输出:
find . -name '*.java' -exec awk '/PATTERN/{printf("%s:%s\n", FILENAME, FNR)}' {} +
答案3
keyW='File.createTempFile'
find . -type f -name '*.java' -exec perl -slne '
print "$ARGV:$." if /\Q$k\E/; $. = 0 if eof;
' -- -k="$keyW" -- {} +
答案4
esport keyW='File.createTempFile'
find . -name '*.java' -type f -exec sh -c '
grep -hn "$keyW" "$1" | cut -d":" -f1 |
while IFS=: read -r n x; do
printf "%s:%s\n" "$1" "$n"
done
' {} {} \;
笔记:
grep
必须运行 1/每个文件是此方法的限制。