我正在尝试创建一个bashscript来将文件从本地边缘节点文件系统上传到hdfs。我想知道在文件中添加时间戳的好方法。让时间戳工作有一些问题。
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 323] 0 323 8840 356 18 0 0 systemd-journal
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 357] 0 357 11645 536 22 0 -1000 systemd-udevd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 392] 0 392 13854 112 26 0 -1000 auditd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 451] 81 451 8176 138 17 0 -900 dbus-daemon
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 455] 0 455 127319 539 63 0 0 NetworkManager
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 456] 0 456 6048 73 15 0 0 systemd-logind
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 458] 998 458 131878 1609 54 0 0 polkitd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 460] 997 460 28962 103 26 0 0 chronyd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 467] 0 467 31556 156 21 0 0 crond
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 474] 0 474 27509 32 13 0 0 agetty
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 482] 0 482 27509 30 10 0 0 agetty
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 499] 0 499 28219 3124 54 0 0 dhclient
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 733] 0 733 138288 2664 88 0 0 tuned
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 736] 0 736 56068 482 37 0 0 rsyslogd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 1670] 0 1670 22472 281 42 0 0 master
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 1699] 89 1699 22515 276 45 0 0 qmgr
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2077] 0 2077 20631 217 39 0 -1000 sshd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2130] 27 2130 280031 53066 167 0 0 mysqld
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2333] 0 2333 26971 24 7 0 0 rhnsd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2397] 0 2397 35749 320 72 0 0 sshd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2400] 1000 2400 35787 348 70 0 0 sshd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2401] 1000 2401 13225 190 29 0 0 sftp-server
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2410] 0 2410 35749 319 72 0 0 sshd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2413] 1000 2413 35770 331 69 0 0 sshd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2414] 1000 2414 28846 94 14 0 0 bash
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2433] 0 2433 48346 173 49 0 0 sudo
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2434] 0 2434 46918 152 48 0 0 su
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2435] 0 2435 28878 123 14 0 0 bash
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2533] 0 2533 94123 1575 180 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2534] 48 2534 98410 5599 184 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2535] 48 2535 97125 4817 181 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2538] 48 2538 97641 4819 182 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2888] 1001 2888 28281 52 14 0 0 standalone.sh
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 2952] 1001 2952 665416 106289 289 0 0 java
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3088] 48 3088 97260 5185 182 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3115] 48 3115 98612 5715 185 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3169] 89 3169 22498 273 43 0 0 pickup
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3230] 48 3230 98419 5602 185 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3231] 48 3231 95656 3494 179 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3232] 48 3232 97320 5048 182 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3233] 48 3233 94517 2289 176 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3235] 48 3235 96425 4303 181 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3246] 48 3246 94157 1567 175 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3248] 0 3248 94123 1584 170 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3249] 0 3249 94123 1594 170 0 0 httpd
Mar 24 14:40:04 ip-172-31-8-83 kernel: [ 3250] 0 3250 94123 1596 170 0 0 httpd
答案 0 :(得分：2)
无法使用date +%T，因为命令结果中包含:个字符，如11:12:45，并且在HDFS中无法创建具有:字符的文件名。见Hadoop-3275。
在脚本中尝试此命令，
hdfs dfs -put /home/myname/folder1/* /user/myname/example_1_`date +%H%M%S`.txt
这将创建类似/user/myname/example_1_111245.txt的文件名。