Commands by qiet72

Commands by qiet72 (2)

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copy hybrid iso images to USB key for booting from it, progress bar and remaining time are displayed while copying
This is sample output - yours may be different.
0

pv file.iso >/dev/sdX

qiet72 · 2012-01-30 09:38:15 4
1 pass wipe of a complete disk with status

Overwrite all sectors with zeros in one pass with ETA and speed status. If you wish to do more passes, encapsulate the line in a for loop (7 pass example): for f in `seq 1 7`; do pv -s `fdisk -l /dev/sdX|grep "Disk /"|cut -d' ' -f5` /dev/zero >/dev/sdX ; done Note: Substitute /dev/sdX with the correct drive you wish to erase. Also, you may have to be root to execute the command. Show Sample Output
This is sample output - yours may be different.
```
50GB 0:00:07 [98MB/s] [================>                     ] 48% ETA 0:15:26
```
0

pv -s `fdisk -l /dev/sdX|grep "Disk /"|cut -d' ' -f5` /dev/zero >/dev/sdX

qiet72 · 2012-01-25 08:25:00 4

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Reboot as a different OS in Grub

This will reboot as the Grub 2 option.

Show IP Address in prompt --> PS1 var

when working with many machines in a computer lab need to know the IP addr is very large, this is a simplistic solution to make things easier

Rename files in batch

Scan for nearby Bluetooth devices.

Scans local area for visible Bluetooth devices. Use 'hcitool inq' to discover the type of device it is. And use -i hciX option to specify the local Bluetooth device to use.

Recursively compare two directories and output their differences on a readable format

Shell function to create a menu of items which may be inserted into the X paste buffer.

The function will take a comma separated list of items to be 'selected' by xsel -i: $ smenu "First item to paste,Paste me #2,Third menu item" You will then be prompted to choose one of the menu items. After you choose, you will be able to paste the string by clicking the middle mouse button. The menu will keep prompting you to choose menu items until you break out with Control-C.

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

kill some process (same as others) but parsing to a variable

Kills a process matching program. I suggest using $ pgrep -fl program to avoid over-killings Nice the following: kills all bash process owned by guest $ pkill -9 -f bash -u guest

Install a local RPM package from your desktop, then use the YUM repository to resolve its dependencies.

When downloading RPMs from the Internet, you don't have to 'rpm -i' or 'rpm -U' to install the package. Especially, if the package has dependencies. If you have YUM setup to access an RPM repository, this command will install the downloaded package, then any dependencies through YUM that it relies on. Very handy on RPM-based systems.

Find the package that installed a command

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