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objdump

print section headers

objdump -h a.o

print assembly code

objdump -d a.o

print relocation table

objdump -r a.o

print symbol table

objdump -t a.o

clang / gcc

compile to object file

gcc -c a.c

compile to dynamic library

gcc -fPIC -shared -o libdemo.dylib lib.c

proxy

export ALL_PROXY=socks5://127.0.0.1:1086

otool -tv clang++

cocoapods

basic

  1. pod spec create NAME
  2. git tag [tagname]
  3. git tag -d [tagname] (remove local tag)
  4. git push --delete origin [tagname] (remove remote tag)
  5. git remote add origin [git URL]
  6. git push --tags
  7. pod repo add [privateSpecsName] [PodSpecs Git URL]

lint

pod lib lint --verbose (local)

pod spec lint --verbose --allow-warnings (local/remote)

submit open source code

pod trunk push NAME.podspec

submit private code

pod repo push [privateSpecsName] NAME.podspec --allow-warnings

symbolicatecrash

prepare three files: symbolicatecrash, .crash, .dSYM.

  1. cd /Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources
  2. export DEVELOPER_DIR="/Applications/XCode.app/Contents/Developer"
  3. ./symbolicatecrash NAME.crash NAME.app.dSYM > result.crash

git

pull single file from remote

git checkout origin/master -- FILENAME

squash commits into one

git rebase --interactive [commit-hash]

delete remote branch

git push <remote_name> --delete <branch_name>

  • The & symbol instructs commands to run in a background process and immediately returns to the command line for additional commands.