Query git latest commit date

Query git latest commit date

cybertech:cybertech-01> git ls-tree -r --name-only HEAD | while read filename; do echo "$(git log -1 --format="%ad" -- $filename) $filename"; done
Fri Mar 13 16:22:46 2020 +0800 Makefile
Tue Jan 14 09:27:02 2020 +0800 common/common.mk

cybertech:cybertech-01> git ls-tree -r --name-only HEAD | while read filename; do echo "$(git log -1 --format="%as" -- $filename) $filename"; done

2020-03-13 16:22:46 +0800 Makefile

2020-01-14 09:27:02 +0800 common/common.mk

cybertech:cybertech-01> git ls-tree -r --name-only HEAD | while read filename; do echo "$(git log --after="2020-3-1" --before="2020-3-21" -1  --format="%ai" -- $filename) $filename"; done

2020-03-13 16:22:46 +0800 Makefile

 common/common.mk

References:
https://www.atlassian.com/git/tutorials/git-log
https://www.edureka.co/blog/git-format-commit-history/
https://git-scm.com/docs/git-log

Command line loops every line in file (DOS & SHELL)

DOS

for /f %i in (filename.txt) do echo %i


SHELL

while IFS= read -r line; do echo $line; done < filename.txt

RHEL Add New HDD / New SAS / New Storage

1. Slot in the new drive
2. List the drive in the RHEL terminal console and find the newly slot in drive 

[user01@cybertech01 ~]$ ls /dev/sd*
/dev/sda   /dev/sda2  /dev/sda4  /dev/sda6  /dev/sdb   /dev/sdc
/dev/sda1  /dev/sda3  /dev/sda5  /dev/sda7  /dev/sdb1
[user01@cybertech01 ~]$ sudo fdisk -l
[sudo] password for user01:
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.

Disk /dev/sda: 4000.8 GB, 4000787030016 bytes
255 heads, 63 sectors/track, 486401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xf943de38

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1      267350  2147483647+  ee  GPT

WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.

Disk /dev/sdb: 4000.8 GB, 4000787030016 bytes
255 heads, 63 sectors/track, 486401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1      267350  2147483647+  ee  GPT

Disk /dev/sdc: 9796.8 GB, 9796820402176 bytes
255 heads, 63 sectors/track, 1191062 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000

For Storage >2GB MUST use GPT to partition the drive.
[user01@cybertech01 ~]$ sudo parted /dev/sdc
GNU Parted 2.1
Using /dev/sdc
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: HGST HUH721010AL5200 (scsi)
Disk /dev/sdc: 9797GB
Sector size (logical/physical): 512B/4096B
Partition Table: msdos

Number  Start  End  Size  Type  File system  Flags

(parted) mklabel gpt
Warning: The existing disk label on /dev/sdc will be destroyed and all data on
this disk will be lost. Do you want to continue?
Yes/No? Yes
(parted) mkpart primary 0GB 9796.8GB
(parted) print
Model: HGST HUH721010AL5200 (scsi)
Disk /dev/sdc: 9797GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt

Number  Start   End     Size    File system  Name     Flags
 1      1049kB  9797GB  9797GB               primary

(parted) quit
Information: You may need to update /etc/fstab.

Format partitioned drive
[user01@cybertech01 ~]$ ls /dev/sdc*
/dev/sdc  /dev/sdc1
[user01@cybertech01 ~]$ sudo mkfs /dev/sdc1
[sudo] password for user01:
mke2fs 1.41.12 (17-May-2010)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=1 blocks, Stripe width=0 blocks
597950464 inodes, 2391801344 blocks
119590067 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
72992 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
        102400000, 214990848, 512000000, 550731776, 644972544, 1934917632

Writing inode tables: done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 39 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.

3. Create mountable drive for new drive in filesystem

[user01@cybertech01 /]$ sudo mkdir /data2
[sudo] password for user01:
[user01@cybertech01 /]$ ls -l
total 116
dr-xr-xr-x.   2 root root  4096 Nov  4  2016 bin
dr-xr-xr-x.   5 root root  4096 Jun 15  2015 boot
drwxr-xr-x.  10 root root  4096 Jun 15  2015 cgroup
drwxrwxrwx.   4 root root  4096 Jul 17 16:03 data
drwxr-xr-x.   2 root root  4096 Jul 27 01:18 data2
drwxr-xr-x.  18 root root  4160 Jul 27 00:45 dev
drwxr-xr-x. 141 root root 12288 Jul 26 03:37 etc
drwxr-xr-x.  11 root root  4096 Jan 11  2018 home
drwxr-xr-x.   2 root root  4096 Jun 17  2015 ISOs
dr-xr-xr-x.  11 root root  4096 Jun 15  2015 lib
dr-xr-xr-x.  10 root root 12288 Nov  4  2016 lib64
drwx------.   2 root root 16384 Jun 15  2015 lost+found
drwxr-xr-x.   2 root root  4096 May 15  2018 media
drwxr-xr-x.   2 root root     0 Jun 15 20:35 misc
drwxr-xr-x.   2 root root  4096 Jun 28  2011 mnt
drwxr-xr-x.   2 root root     0 Jun 15 20:35 net
drwxr-xr-x.   4 root root  4096 Jan 11  2018 opt
dr-xr-xr-x. 210 root root     0 Jun 15 20:32 proc
dr-xr-x---.  31 root root  4096 May 15  2018 root
dr-xr-xr-x.   2 root root 12288 Dec  7  2016 sbin
drwxr-xr-x.   7 root root     0 Jun 15 20:32 selinux
drwxr-xr-x.   2 root root  4096 Jun 28  2011 srv
drwxr-xr-x.  13 root root     0 Jun 15 20:32 sys
drwxrwxrwt.  24 root root  4096 Jul 26 07:25 tmp
drwxr-xr-x.  13 root root  4096 Jun 15  2015 usr
drwxr-xr-x.  25 root root  4096 Jun 18  2015 var
[user01@cybertech01 /]$ sudo chmod 777 data2
[user01@cybertech01 /]$ ls -l
total 116
dr-xr-xr-x.   2 root root  4096 Nov  4  2016 bin
dr-xr-xr-x.   5 root root  4096 Jun 15  2015 boot
drwxr-xr-x.  10 root root  4096 Jun 15  2015 cgroup
drwxrwxrwx.   4 root root  4096 Jul 17 16:03 data
drwxrwxrwx.   2 root root  4096 Jul 27 01:18 data2
drwxr-xr-x.  18 root root  4160 Jul 27 00:45 dev
drwxr-xr-x. 141 root root 12288 Jul 26 03:37 etc
drwxr-xr-x.  11 root root  4096 Jan 11  2018 home
drwxr-xr-x.   2 root root  4096 Jun 17  2015 ISOs
dr-xr-xr-x.  11 root root  4096 Jun 15  2015 lib
dr-xr-xr-x.  10 root root 12288 Nov  4  2016 lib64
drwx------.   2 root root 16384 Jun 15  2015 lost+found
drwxr-xr-x.   2 root root  4096 May 15  2018 media
drwxr-xr-x.   2 root root     0 Jun 15 20:35 misc
drwxr-xr-x.   2 root root  4096 Jun 28  2011 mnt
drwxr-xr-x.   2 root root     0 Jun 15 20:35 net
drwxr-xr-x.   4 root root  4096 Jan 11  2018 opt
dr-xr-xr-x. 210 root root     0 Jun 15 20:32 proc
dr-xr-x---.  31 root root  4096 May 15  2018 root
dr-xr-xr-x.   2 root root 12288 Dec  7  2016 sbin
drwxr-xr-x.   7 root root     0 Jun 15 20:32 selinux
drwxr-xr-x.   2 root root  4096 Jun 28  2011 srv
drwxr-xr-x.  13 root root     0 Jun 15 20:32 sys
drwxrwxrwt.  24 root root  4096 Jul 26 07:25 tmp
drwxr-xr-x.  13 root root  4096 Jun 15  2015 usr
drwxr-xr-x.  25 root root  4096 Jun 18  2015 var

4. Mount drive - auto mount drive every time machine boot up
[user01@cybertech01 ~]$ cat /etc/fstab

#
# /etc/fstab
# Created by anaconda on Mon Jun 15 19:08:42 2015
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=e75996a4-7fe7-47e2-8555-729c65595ad5 /                       ext4    defaults        1 1
UUID=5dbfeb72-a62e-40a3-9bf7-94bbff1e13f2 /boot                   ext4    defaults        1 2
UUID=DD53-1ACA          /boot/efi               vfat    umask=0077,shortname=winnt 0 0
UUID=8c5a4548-10fb-4958-aaaa-ef09e630de15 swap                    swap    defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
/ISOs/rhel-server-6.5-x86_64-dvd.iso /var/OSimage/RHEL6.5_x86_64 iso9660 loop,ro 0 0
/dev/sdb1               /data                   ext4    auto,user,rw    1 2

[user01@cybertech01 ~]$ sudo vi /etc/fstab
#
# /etc/fstab
# Created by anaconda on Mon Jun 15 19:08:42 2015
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=e75996a4-7fe7-47e2-8555-729c65595ad5 /                       ext4    defaults        1 1
UUID=5dbfeb72-a62e-40a3-9bf7-94bbff1e13f2 /boot                   ext4    defaults        1 2
UUID=DD53-1ACA          /boot/efi               vfat    umask=0077,shortname=winnt 0 0
UUID=8c5a4548-10fb-4958-aaaa-ef09e630de15 swap                    swap    defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0
/ISOs/rhel-server-6.5-x86_64-dvd.iso /var/OSimage/RHEL6.5_x86_64 iso9660 loop,ro 0 0
/dev/sdb1               /data                   ext4    auto,user,rw    1 2
/dev/sdc1               /data2                   ext4    auto,user,rw    1 2

5. Reboot to confirm the auto-mount is correct, do expect slow boot up if the drive is large drive.
[user01@cybertech01 /]$ sudo reboot

Broadcast message from user01@cybertech01
        (/dev/pts/0) at 1:20 ...

The system is going down for reboot NOW!
[user01@cybertech01 /]$

To confirm the new drive is mounted and confirm the storage space.
[user01@cybertech01 /]$ df


Credits to the reference page below:
Formating / partitioning new drive
https://www.thegeekstuff.com/2012/08/2tb-gtp-parted/

Auto mount drive:
https://www.techotopia.com/index.php/Adding_a_New_Disk_Drive_to_an_RHEL_6_System 

To clear if wrongly partition:
https://www.cyberciti.biz/faq/linux-how-to-delete-a-partition-with-fdisk-command/

Uninstall application in DOS

# Find any application with "Nero" or "micro" strings then get their version name and version redirect to a file named result.txt
wmic /OUTPUT:C:\result.txt product where( name like '%Nero%' or name like '%micro%' ) get name,version

# List all the installed application name
wmic product get name

# Find application named "Nero 2018" and unstalling it without prompt
wmic product where name="Nero 2018" call uninstall /nointerative

Reset windows folder sharing access (reset users connection)

Reset windows folder sharing access (reset users connection)

https://serverfault.com/questions/56744/how-do-i-reset-my-network-share-permissions
https://technet.microsoft.com/en-us/library/cc725598(v=ws.11).aspx


c:\windows\system32\NET.exe SESSION /DELETE /Y

Dos for loop with delay

Command below performing 1000 iterations printing number with 1 second delay interval

for /l %i in (1,1,1000) do timeout /t 1 > nul| echo %i

Additional refer:
https://hubpages.com/technology/How-to-Make-A-Windows-Batch-File-Loop-Sleep-or-Delay-For-Specific-Interval-of-Time

Files become shortcuts issue (virus)

https://www.easeus.com/file-recovery/recover-files-infected-by-shortcut-virus.html

Solution 1. Recover shortcut files using CMD

If the flash drive is not formatted, the shortcut files must have been stored in the hardware in hidden mode. You can recover them using CMD by following these steps:

1. 1. Go to Start -> Run -> cmd.
2. 2. Go to your pen drive, memory cards or mobile phone directory.
3. 3. Type del *.lnk (to delete all link files in the directory)
4. 4. Type attrib -h -r -s /s /d e:*.*
5. 
6. 5. Replace G with your drive letter.
7. 6. And then press a gentle Enter.

Finish all these steps you can check for your files in on the pen drive. If you can’t find the files you want, you can try another solution: recover shortcut files with EaseUS data recovery software.