[20190505]ts 命令在哪裡.txt

[20190505]ts 命令在哪裡.txt

--//在論壇問一下ts命令在哪裡?沒人解答,自己也google看了一下:

--//however, if I use the same format string with moreutils' ts, the nanosecond precision fails:

--//應該在1個moreutils包裡面.

--//另外注意如下都不是:

#  ls -l ts-0.7.3-1.2.x86_64.rpm task-spooler-1.0-1.3.el6.x86_64.rpm

-rw-r--r-- 1 root root 40628 2019-05-05 16:02:38 task-spooler-1.0-1.3.el6.x86_64.rpm

-rw-r--r-- 1 root root 46792 2019-05-05 09:18:37 ts-0.7.3-1.2.x86_64.rpm

--//找到半天僅僅找到rhel 7 的rpm包.

# ls -l moreutils-0.49-2.el7.x86_64.rpm perl-*

-rw-r--r--. 1 root root  77156 2019-05-05 16:16:44 moreutils-0.49-2.el7.x86_64.rpm

-rw-r--r--. 1 root root  39464 2019-05-05 16:27:12 perl-IO-1.25-2.2.x86_64.rpm

-rw-r--r--. 1 root root  42580 2019-05-05 16:31:03 perl-IO-Tty-1.10-11.el7.x86_64.rpm

-rw-r--r--. 1 root root 124524 2019-05-05 16:21:30 perl-IPC-Run-0.92-2.el7.noarch.rpm

-rw-r--r--. 1 root root  52744 2019-05-05 16:23:37 perl-TimeDate-2.30-2.el7.noarch.rpm

-rw-r--r--. 1 root root  16872 2019-05-05 16:21:37 perl-Time-Duration-1.06-17.8.noarch.rpm

# rpm -ivh moreutils-0.49-2.el7.x86_64.rpm perl-IPC-Run-0.92-2.el7.noarch.rpm perl-TimeDate-2.30-2.el7.noarch.rpm perl-Time-Duration-1.06-17.8.noarch.rpm perl-IO-Tty-1.10-11.el7.x86_64.rpm

warning: moreutils-0.49-2.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 9dbd524d: NOKEY

warning: perl-IPC-Run-0.92-2.el7.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY

Preparing...                          ################################# [100%]

Updating / installing...

   1:perl-IO-Tty-1.10-11.el7          ################################# [ 20%]

   2:perl-IPC-Run-0.92-2.el7          ################################# [ 40%]

   3:perl-Time-Duration-1.06-17.8     ################################# [ 60%]

   4:perl-TimeDate-1:2.30-2.el7       ################################# [ 80%]

   5:moreutils-0.49-2.el7             ################################# [100%]

# file /usr/bin/ts

/usr/bin/ts: Perl script, ASCII text executable

# yes | ts | uniq -c

  18069 May 05 16:32:23 y

  72879 May 05 16:32:24 y

  50330 May 05 16:32:25 y

  50756 May 05 16:32:26 y

  67530 May 05 16:32:27 y

  59702 May 05 16:32:28 y

  74953 May 05 16:32:29 y

# ping -i 2 -c 3 192.168.100.40|ts  '%Y-%m-%d %H:%M:%.S'

2019-05-05 16:35:51.603349 PING 192.168.100.40 (192.168.100.40) 56(84) bytes of data.

2019-05-05 16:35:51.603458 64 bytes from 192.168.100.40: icmp_seq=1 ttl=63 time=0.502 ms

2019-05-05 16:35:53.581129 64 bytes from 192.168.100.40: icmp_seq=2 ttl=63 time=0.286 ms

2019-05-05 16:35:55.581410 64 bytes from 192.168.100.40: icmp_seq=3 ttl=63 time=0.279 ms

2019-05-05 16:35:55.581510

2019-05-05 16:35:55.581531 --- 192.168.100.40 ping statistics ---

2019-05-05 16:35:55.581548 3 packets transmitted, 3 received, 0% packet loss, time 4000ms

2019-05-05 16:35:55.581565 rtt min/avg/max/mdev = 0.279/0.355/0.502/0.105 ms

--//%.S顯示秒後面的時間.精度更高.

# ping -i 1 -c 4 192.168.100.40|ts -i  '%.S'

00.000020 PING 192.168.100.40 (192.168.100.40) 56(84) bytes of data.

00.000083 64 bytes from 192.168.100.40: icmp_seq=1 ttl=63 time=0.489 ms

00.978879 64 bytes from 192.168.100.40: icmp_seq=2 ttl=63 time=0.335 ms

00.999936 64 bytes from 192.168.100.40: icmp_seq=3 ttl=63 time=0.280 ms

01.000335 64 bytes from 192.168.100.40: icmp_seq=4 ttl=63 time=0.313 ms

00.000073

00.000010 --- 192.168.100.40 ping statistics ---

00.000007 4 packets transmitted, 4 received, 0% packet loss, time 3000ms

00.000008 rtt min/avg/max/mdev = 0.280/0.354/0.489/0.081 ms

--//裡面還有1些小工具.其中vidir有點恐怖有意思,可以實現像文字編輯器那樣修改檔案以及目錄:

# man vidir

VIDIR(1)                                                                                                                                                                                                                                                        VIDIR(1)

NAME

       vidir - edit directory

SYNOPSIS

       vidir [--verbose] [directory|file|-] ...

DESCRIPTION

  vidir allows editing of the contents of a directory in a text editor. If no directory is specified, the current

  directory is edited.

  When editing a directory, each item in the directory will appear on its own numbered line. These numbers are how

  vidir keeps track of what items are changed. Delete lines to remove files from the directory, or edit filenames

  to rename files. You can also switch pairs of numbers to swap filenames.

  Note that if "-" is specified as the directory to edit, it reads a list of filenames from stdin and displays

  those for editing. Alternatively, a list of files can be specified on the command line.

--//演示如下:

# ls -l

total 0

-rw-r--r--. 1 root root 0 2019-05-05 16:48:29 aaa

-rw-r--r--. 1 root root 0 2019-05-05 16:48:32 bbb

drwxr-xr-x. 2 root root 6 2019-05-05 16:48:37 ccc

# vidir

1       ./aaa

2       ./bbb

3       ./ccc

--//修改如下儲存,注意前面的編號不要修改:

1       ./aaa1

2       ./bbb2

3       ./ccc3

# ls -l

total 0

-rw-r--r--. 1 root root 0 2019-05-05 16:48:29 aaa1

-rw-r--r--. 1 root root 0 2019-05-05 16:48:32 bbb2

drwxr-xr-x. 2 root root 6 2019-05-05 16:48:37 ccc3

--//如果你刪除了一行,對應的檔案在儲存後就刪除了.當然我的測試如果目錄非空好像不會刪除.會報目錄非空.