Check if a library is installed in UNIX

libcheck.sh

# http://serverfault.com/questions/54736/how-to-check-if-a-library-is-installed
# work 99% of the time
alias libcheck='ldconfig -p | grep '

# other ways
# for deb-based distribution
# dpkg -s packagename

# for exact filename search
# locate filename

# for redhat systems
# pkg-config --cflags jpeg
# pkg-config --libs jpeg
# pkg-config --cflags "jpeg >= 1.0.0" # for version check
# pkg-config  --modversion jpeg | awk -F. '{ printf "0x%02X%02X%02X\n",$1,$2,$3 }' #version check

# for ubuntu
# dpkg -L packagename

# http://unix.stackexchange.com/questions/58846/viewing-linux-library-executable-version-info
# for redhat
# yum info libname