我下载的文件跑到哪里去了

(base) [ec2-user@ip-172-31-8-237 CogQA]$ ls
bin                                                               hotpot_evaluate_v1.py         redis-3.2.8
cogqa.py                                                          hotpot_test_fullwiki_v1.json  redis-3.2.8.tar.gz
data.py                                                           improved_retrieval.zip        requirements.txt
enwiki-20171001-pages-meta-current-withlinks-processed.tar.bz2    LICENSE                       src
enwiki-20171001-pages-meta-current-withlinks-processed.tar.bz2.1  model.py                      train.py
etc                                                               process_train.py              utils.py
examples                                                          read_fullwiki.py
hotpot_dev_fullwiki_v1.json                                       readme.md
(base) [ec2-user@ip-172-31-8-237 CogQA]$ tar -xjf enwiki-20171001-pages-meta-current-withlinks-abstracts.tar.bz2
tar (child): enwiki-20171001-pages-meta-current-withlinks-abstracts.tar.bz2: Cannot open: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now
(base) [ec2-user@ip-172-31-8-237 CogQA]$

在亚马逊云 下载了一个文件，但是目录里没有，用ls查有，想解压，但是又不存在，是怎么回事啊
重新打开亚马逊AWS EC2，关机重启都不行