FAQ: Update LD_LIBRARY_PATH and PYTHONPATH

libbcc.so is actually installed to /usr/lib64 instead of /usr/local/lib in my computer system: $ find /usr -name libbcc.so /usr/lib64/libbcc.so And also we can find out bcc-python: $ find /usr/lib -name bcc /usr/lib/python2.7/site-packages/bcc It is better to use one line command to export environment variable LD_LIBRARY_PATH and PYTHONPATH. Signed-off-by: Tiezhu Yang <[email protected]>
githubTang-T · Mar 17, 2021 · 9b6b05a · 9b6b05a
1 parent f604646
commit 9b6b05a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/FAQ.txt b/FAQ.txt
@@ -8,13 +8,13 @@ Q: hello_world.py fails with:
  OSError: libbcc.so: cannot open shared object file: No such file or directory
 A: make sure to 'make install' and add the directory
  where libbcc.so was installed into your LD_LIBRARY_PATH
- export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
+ export LD_LIBRARY_PATH=$(dirname `find /usr -name libbcc.so`):$LD_LIBRARY_PATH
 
 Q: hello_world.py fails with:
  ImportError: No module named bcc
 A: checkout "sudo make install" output to find out bpf package installation site,
  add it to the PYTHONPATH env variable before running the program.
- sudo bash -c 'PYTHONPATH=/usr/lib/python2.7/site-packages python examples/hello_world.py'
+ export PYTHONPATH=$(dirname `find /usr/lib -name bcc`):$PYTHONPATH
 
 Q: hello_world.py still fails with:
  bpf: Operation not permitted