最近，在尝试释放一些空间时，我发现一个名为“linux-4.13.10”的目录，大小为 13 GB，出现在我的下载中。我不明白为什么它在那里。我之前有时更新过Ubuntu，最近也更新过内核。我可以删除它，并释放一些空间，否则可能会弄乱操作系统。
uname -a
Linux ...... 4.15.0-128-generic #131-Ubuntu SMP 12 月 9 日星期三 06:57:35 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
(base) imran@imran:~/Downloads/linux-4.13.10$ ls -lah
total 1.1G
drwxrwxr-x 25 imran imran 4.0K Nov 6 2017 .
drwxr-xr-x 21 imran imran 16K Dec 24 23:19 ..
-rw-rw-r-- 1 imran imran 22 Nov 5 2017 .10137.d
-rw-rw-r-- 1 imran imran 22 Nov 4 2017 .10362.d
-rw-rw-r-- 1 imran imran 22 Nov 5 2017 .11603.d
-rw-rw-r-- 1 imran imran 22 Nov 5 2017 .14317.d
-rw-rw-r-- 1 imran imran 22 Nov 5 2017 .14395.d
-rw-rw-r-- 1 imran imran 22 Oct 28 2017 .15038.d
-rw-rw-r-- 1 imran imran 22 Nov 5 2017 .15402.d
-rw-rw-r-- 1 imran imran 22 Oct 28 2017 .15916.d
-rw-rw-r-- 1 imran imran 22 Nov 5 2017 .18544.d
-rw-rw-r-- 1 imran imran 22 Oct 28 2017 .24605.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3105.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3331.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3435.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3462.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3541.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3571.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3599.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3636.d
-rw-rw-r-- 1 imran imran 21 Nov 6 2017 .3645.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3657.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3674.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3676.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3689.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3715.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3719.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3735.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3799.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3803.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3984.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .3989.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4027.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4059.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4080.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4098.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4122.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4131.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4145.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4160.d
-rw-rw-r-- 1 imran imran 21 Nov 6 2017 .4174.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4202.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4203.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4216.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4235.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4237.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4247.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4252.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4266.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4276.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4292.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4403.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4436.d
-rw-rw-r-- 1 imran imran 21 Nov 4 2017 .4496.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4541.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4562.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4564.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4685.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .4710.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5042.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5161.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5173.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5210.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5217.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5222.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5274.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5323.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5411.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5477.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5706.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5763.d
-rw-rw-r-- 1 imran imran 21 Nov 4 2017 .5850.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .5982.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .6041.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .6381.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .6428.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .6703.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .7436.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .7901.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .7975.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .8164.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .8375.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .8557.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .9125.d
-rw-rw-r-- 1 imran imran 21 Nov 6 2017 .9366.d
-rw-rw-r-- 1 imran imran 21 Nov 5 2017 .9868.d
drwxrwxr-x 33 imran imran 4.0K Oct 28 2017 arch
drwxrwxr-x 3 imran imran 4.0K Nov 6 2017 block
-rw-rw-r-- 1 imran imran 524K Nov 6 2017 built-in.o
drwxrwxr-x 2 imran imran 4.0K Nov 6 2017 certs
-rw-rw-r-- 1 imran imran 59 Oct 27 2017 .cocciconfig
-rw-r--r-- 1 imran imran 201K Nov 4 2017 config
-rw-rw-r-- 1 imran imran 88K Nov 6 2017 .config
-rw-rw-r-- 1 imran imran 88K Nov 6 2017 .config.old
-rw-rw-r-- 1 imran imran 19K Oct 27 2017 COPYING
-rw-rw-r-- 1 imran imran 97K Oct 27 2017 CREDITS
drwxrwxr-x 4 imran imran 28K Nov 6 2017 crypto
drwxrwxr-x 121 imran imran 12K Oct 27 2017 Documentation
drwxrwxr-x 132 imran imran 4.0K Nov 6 2017 drivers
drwxrwxr-x 36 imran imran 4.0K Nov 4 2017 firmware
drwxrwxr-x 74 imran imran 12K Nov 6 2017 fs
-rw-rw-r-- 1 imran imran 31 Oct 27 2017 .get_maintainer.ignore
-rw-rw-r-- 1 imran imran 30 Oct 27 2017 .gitattributes
-rw-rw-r-- 1 imran imran 1.3K Oct 27 2017 .gitignore
drwxrwxr-x 30 imran imran 4.0K Oct 28 2017 include
drwxrwxr-x 2 imran imran 4.0K Nov 6 2017 init
drwxrwxr-x 2 imran imran 4.0K Nov 6 2017 ipc
-rw-rw-r-- 1 imran imran 2.3K Oct 27 2017 Kbuild
-rw-rw-r-- 1 imran imran 252 Oct 27 2017 Kconfig
drwxrwxr-x 17 imran imran 12K Nov 6 2017 kernel
drwxrwxr-x 12 imran imran 28K Nov 6 2017 lib
-rw-rw-r-- 1 imran imran 8.2K Oct 27 2017 .mailmap
-rw-rw-r-- 1 imran imran 411K Oct 27 2017 MAINTAINERS
-rw-rw-r-- 1 imran imran 59K Oct 27 2017 Makefile
-rw-rw-r-- 1 imran imran 485 Nov 6 2017 .missing-syscalls.d
drwxrwxr-x 3 imran imran 12K Nov 6 2017 mm
-rw-rw-r-- 1 imran imran 4.8K Nov 6 2017 modules.builtin
-rw-rw-r-- 1 imran imran 2.1K Nov 6 2017 modules.order
-rw-rw-r-- 1 imran imran 466K Nov 6 2017 Module.symvers
drwxrwxr-x 69 imran imran 4.0K Nov 6 2017 net
-rw-rw-r-- 1 imran imran 722 Oct 27 2017 README
drwxrwxr-x 27 imran imran 4.0K Oct 27 2017 samples
drwxrwxr-x 14 imran imran 4.0K Oct 28 2017 scripts
drwxrwxr-x 10 imran imran 4.0K Nov 6 2017 security
drwxrwxr-x 24 imran imran 4.0K Nov 5 2017 sound
-rw-rw-r-- 1 imran imran 2.7M Nov 6 2017 System.map
-rw-rw-r-- 1 imran imran 1.1M Nov 6 2017 .tmp_kallsyms1.o
-rw-rw-r-- 1 imran imran 6.2M Nov 6 2017 .tmp_kallsyms1.S
-rw-rw-r-- 1 imran imran 1.1M Nov 6 2017 .tmp_kallsyms2.o
-rw-rw-r-- 1 imran imran 6.2M Nov 6 2017 .tmp_kallsyms2.S
-rw-rw-r-- 1 imran imran 2.7M Nov 6 2017 .tmp_System.map
drwxrwxr-x 2 imran imran 140K Nov 6 2017 .tmp_versions
-rwxrwxr-x 1 imran imran 258M Nov 6 2017 .tmp_vmlinux1
-rwxrwxr-x 1 imran imran 260M Nov 6 2017 .tmp_vmlinux2
drwxrwxr-x 31 imran imran 4.0K Oct 27 2017 tools
drwxrwxr-x 2 imran imran 4.0K Nov 6 2017 usr
-rw-rw-r-- 1 imran imran 3 Nov 6 2017 .version
drwxrwxr-x 4 imran imran 4.0K Oct 28 2017 virt
-rwxrwxr-x 1 imran imran 260M Nov 6 2017 vmlinux
-rw-rw-r-- 1 imran imran 99 Nov 6 2017 .vmlinux.cmd
lrwxrwxrwx 1 imran imran 62 Nov 6 2017 vmlinux-gdb.py -> /home/imran/Downloads/linux-4.13.10/scripts/gdb/vmlinux-gdb.py
-rw-rw-r-- 1 imran imran 302M Nov 6 2017 vmlinux.o
答案1
由于它位于您的下载文件夹中，因此我认为删除它是安全的。
答案2
这看起来就像一个完全普通的内核源代码树，尽管考虑到总大小，我认为您过去可能会git引入比实际需要的更多的内容。
无论如何，删除它应该是安全的。
...此外，当前（截至 2020 年 12 月）4.x 内核是 4.19，不久前发布了 5.10；如果您仍在使用 4.15，则可能需要进行其他更新。