01 Dec 2014
gzip t1
mv t1.gz t1.exe
# 未知的后缀名，忽略
gzip -d t1.exe
gzip: t1.exe: unknown suffix -- ignored
cat t2 line 1 line 2 bzip2 t2 mv t2.bz2 t2.exe # 无法推测压缩文件的源文件，用filename.out替代 bzip2 -d t2.exe bzip2: Can\'t guess original name for t2.exe -- using t2.exe.out cat t2.exe.out line 1 line 2
xz t3
mv t3.xz t3.exe
# 未知的后缀名，跳过
xz -d t3.exe
xz: t3.exe: Filename has an unknown suffix, skipping
zip t2.exe t2 adding: t2 (deflated 7%) # 完美支持各种后缀名，并提供选项询问如何处理解压的文件 unzip t2.exe Archive: t2.exe replace t2? [y]es, [n]o, [A]ll, [N]one, [r]ename: y inflating: t2
ls -i pass 428213 pass gzip pass # 创建几个普通文件，用来占用空出来的inode touch t1 touch t2 gzip -d pass.gz # inode"428213"、"428214"被占用，只能分配"428215" ls -i pass 428215 pass
ln -s pass pass.sl gzip pass ll pass* -rw-r--r-- 1 root root 686 Dec 2 20:44 pass.gz lrwxrwxrwx 1 root root 4 Dec 2 22:35 pass.sl -> pass # 重新解压后软连接恢复 gzip -d pass.gz ll pass* -rw-r--r-- 1 root root 4605 Dec 2 20:44 pass lrwxrwxrwx 1 root root 4 Dec 2 22:35 pass.sl -> pass
ln pass pass.hl ll -i pass* 428220 -rw-r--r-- 2 root root 4605 Dec 2 20:44 pass 428220 -rw-r--r-- 2 root root 4605 Dec 2 20:44 pass.hl 428182 lrwxrwxrwx 1 root root 4 Dec 2 22:35 pass.sl -> pass # 提示文件拥有其他的link，未执行压缩，删除硬链接后，可以压缩 gzip pass gzip: pass has 1 other link -- unchanged
错误信息
# 加-P参数是为了取得绝对路径 tar zcvf -P /tmp/rc.tar.gz /etc/rc* tar: Removing leading '/' from member names tar: /tmp/rc.tar.gz: Cannot stat: No such file or directory /etc/rc0.d ...... /etc/rc.local tar: Exiting with failure status due to previous errors
原因: -f参数后面必须直接跟包文件名称