49 lines
1.2 KiB
Markdown
49 lines
1.2 KiB
Markdown
# Looking
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Your package has something to do with unzipping. Find out more:
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> apropos unzip
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# Maintenance
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> dpkg -l
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List what's installed.
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# Libraries
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Libraries under /lib/ typically contain an .so suffix when they're dynamic. It means 'shared object' as a number of programs will refer to it.
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Others will have an /a/ suffix, meaning that they're static, and will be loaded at runtime.
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We can check the dependencies of a program using the ldd command upon anything in a library. For example:
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> ldd/usr/bin/md5sum
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... shows us that md5sum depends upon:
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- linux-vdso.so.1
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- libc.so.6
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- lib64/ld-linux-x86-64.so.2
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To list all libraries, run:
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> ldconfig -p
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For example, if looking at /usr/lib/x86_64-linux-gnu/libXcomposite.so.1, we might wonder what it's for. We can then run:
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> ldconfig -p | grep libXcomposite
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... and find out nothing except that it redirects /usr/lib/x86...
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So at least we know where it is.
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> ldconfig -p | grep usb
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... this will show where things which nominally relate to usbs live.
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You can add to the libarary path by putting just any text file in /etc/ld.so.cache, e.g. in Arch where the path to the fakeroot environment is placed there.
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