解压当前目录下的所有 .tar.gz 结尾的文件：for ARK in ./*.tar.gz; do tar -xvf $ARK; done

.gz

gunzip *.gz

for ARK in ./*.gz; 

do gunzip $ARK; 

done

.bz2

bunzip2 *.bz2

.tar.gz

for file in *.tar.gz; 

do tar -zxf "${file}"; 

done

for file in *.tar.bz2; 

do tar -jxf "${file}"; 

done

.zip