[20210929]带有回车的文件如何改名.txt

[20210929]带有回车的文件如何改名.txt --//http://www.itpub.net/thread-2143182-1-1.html,里面涉及到redo log文件该有换行符号,涉及到改名问题, --//当然作者采用删除再重建也是可以的,测试看看遇到这样的情况如何改名. $ mkdir Testz $ cd Testz $ touch "aaa^Jbbb" --//^J 通过ctrl+v ctrl+J输入. 这样就建立带有\n字符的文件 $ ls -1 | xxd -c 16 0000000: 6161 610a 6262 620a                      aaa.bbb. --//0x0a 代表\n. --//改名很简单.  $ mv aaa?bbb aaa `aaa\nbbb' -> `aaa' $ ls -1 |xxd -c 16 0000000: 6161 610a                                aaa. --//这样就修改成没有回车换行的文件了.其它方法. $ mv aaa aaa^Jbbb /bin/mv: `aaa' and `aaa' are the same file -bash: bbb: command not found --//^_^,这样写变成了 mv aaa aaa bbb,加上引号ok. $ mv aaa "aaa^Jbbb" `aaa' -> `aaa\nbbb' $ mv "aaa^Jbbb" aaa `aaa\nbbb' -> `aaa' --//在测试环境测试看看. SYS@book> startup mount ORACLE instance started. Total System Global Area  643084288 bytes Fixed Size                  2255872 bytes Variable Size             205521920 bytes Database Buffers          427819008 bytes Redo Buffers                7487488 bytes Database mounted. SYS@book> @ logfile GROUP# STATUS     TYPE       MEMBER                          IS_ GROUP# THREAD# SEQUENCE#       BYTES BLOCKSIZE MEMBERS ARC STATUS     FIRST_CHANGE# FIRST_TIME          NEXT_CHANGE# NEXT_TIME ------ ---------- ---------- ------------------------------- --- ------ ------- --------- ----------- --------- ------- --- ---------- ------------- ------------------- ------------ -------------------      1            ONLINE     /mnt/ramdisk/book/redo01.log    NO       1       1      1346    52428800       512       1 YES INACTIVE     15026404702 2021-09-28 09:35:56  15026411573 2021-09-28 11:00:59      2            ONLINE     /mnt/ramdisk/book/redo02.log    NO       2       1      1347    52428800       512       1 NO  CURRENT      15026411573 2021-09-28 11:00:59 2.814750E+14      3            ONLINE     /mnt/ramdisk/book/redo03.log    NO       3       1      1345    52428800       512       1 YES INACTIVE     15026396123 2021-09-26 10:32:23  15026404702 2021-09-28 09:35:56      4            STANDBY    /mnt/ramdisk/book/redostb01.log NO      5            STANDBY    /mnt/ramdisk/book/redostb02.log NO      6            STANDBY    /mnt/ramdisk/book/redostb03.log NO      7            STANDBY    /mnt/ramdisk/book/redostb04.log NO 7 rows selected. $ cd /mnt/ramdisk/book/ $ mv redo03.log "redo^J03.log" `redo03.log' -> `redo\n03.log' $ ll -b redo* -rw-r----- 1 oracle oinstall 52429312 2021-09-29 09:01:13 redo01.log -rw-r----- 1 oracle oinstall 52429312 2021-09-29 09:02:59 redo02.log -rw-r----- 1 oracle oinstall 52429312 2021-09-29 09:01:13 redo\n03.log -rw-r----- 1 oracle oinstall 52429312 2021-02-25 09:51:41 redostb01.log -rw-r----- 1 oracle oinstall 52429312 2021-02-25 09:51:41 redostb02.log -rw-r----- 1 oracle oinstall 52429312 2021-02-25 09:51:41 redostb03.log -rw-r----- 1 oracle oinstall 52429312 2021-02-25 09:51:41 redostb04.log SYS@book> alter database rename file '/mnt/ramdisk/book/redo03.log' to '/mnt/ramdisk/book/redo   2  03.log'; Database altered. SYS@book> @ logfile GROUP# STATUS     TYPE       MEMBER                           IS_ GROUP# THREAD# SEQUENCE#       BYTES BLOCKSIZE MEMBERS ARC STATUS     FIRST_CHANGE# FIRST_TIME          NEXT_CHANGE# NEXT_TIME ------ ---------- ---------- -------------------------------- --- ------ ------- --------- ----------- --------- ------- --- ---------- ------------- ------------------- ------------ -------------------      1            ONLINE     /mnt/ramdisk/book/redo01.log     NO       1       1      1346    52428800       512       1 YES INACTIVE     15026404702 2021-09-28 09:35:56  15026411573 2021-09-28 11:00:59      2            ONLINE     /mnt/ramdisk/book/redo02.log     NO       2       1      1347    52428800       512       1 NO  CURRENT      15026411573 2021-09-28 11:00:59 2.814750E+14      3            ONLINE     /mnt/ramdisk/book/redo           NO       3       1      1345    52428800       512       1 YES INACTIVE     15026396123 2021-09-26 10:32:23  15026404702 2021-09-28 09:35:56                              03.log      4            STANDBY    /mnt/ramdisk/book/redostb01.log  NO      5            STANDBY    /mnt/ramdisk/book/redostb02.log  NO      6            STANDBY    /mnt/ramdisk/book/redostb03.log  NO      7            STANDBY    /mnt/ramdisk/book/redostb04.log  NO 7 rows selected. --//能改成带有\n的字符,再改回去应该很简单了. $ mv "redo^J03.log" redo03.log `redo\n03.log' -> `redo03.log' SYS@book> alter database rename file '/mnt/ramdisk/book/redo   2  03.log' to '/mnt/ramdisk/book/redo03.log'; Database altered. SYS@book> @ logfile GROUP# STATUS     TYPE       MEMBER                          IS_ GROUP# THREAD# SEQUENCE#       BYTES BLOCKSIZE MEMBERS ARC STATUS     FIRST_CHANGE# FIRST_TIME          NEXT_CHANGE# NEXT_TIME ------ ---------- ---------- ------------------------------- --- ------ ------- --------- ----------- --------- ------- --- ---------- ------------- ------------------- ------------ -------------------      1            ONLINE     /mnt/ramdisk/book/redo01.log    NO       1       1      1346    52428800       512       1 YES INACTIVE     15026404702 2021-09-28 09:35:56  15026411573 2021-09-28 11:00:59      2            ONLINE     /mnt/ramdisk/book/redo02.log    NO       2       1      1347    52428800       512       1 NO  CURRENT      15026411573 2021-09-28 11:00:59 2.814750E+14      3            ONLINE     /mnt/ramdisk/book/redo03.log    NO       3       1      1345    52428800       512       1 YES INACTIVE     15026396123 2021-09-26 10:32:23  15026404702 2021-09-28 09:35:56      4            STANDBY    /mnt/ramdisk/book/redostb01.log NO      5            STANDBY    /mnt/ramdisk/book/redostb02.log NO      6            STANDBY    /mnt/ramdisk/book/redostb03.log NO      7            STANDBY    /mnt/ramdisk/book/redostb04.log NO 7 rows selected. $ ls -l redo0* -rw-r----- 1 oracle oinstall 52429312 2021-09-29 09:01:13 redo01.log -rw-r----- 1 oracle oinstall 52429312 2021-09-29 09:02:59 redo02.log -rw-r----- 1 oracle oinstall 52429312 2021-09-29 09:01:13 redo03.log SYS@book> alter database open ; Database altered.