From 9b421535ddffcafc00246bc0a683b04f39c25f65 Mon Sep 17 00:00:00 2001 From: William Date: Sun, 27 Dec 2015 17:58:53 +0800 Subject: [PATCH] add dd.md for osx and linux --- pages/linux/dd.md | 19 +++++++++++++++++++ pages/osx/dd.md | 19 +++++++++++++++++++ 2 files changed, 38 insertions(+) create mode 100644 pages/linux/dd.md create mode 100644 pages/osx/dd.md diff --git a/pages/linux/dd.md b/pages/linux/dd.md new file mode 100644 index 0000000000..6b749df290 --- /dev/null +++ b/pages/linux/dd.md @@ -0,0 +1,19 @@ +# dd + +> convert and copy a file + +- Make a bootable usb drive from an isohybrid file (such like archlinux-xxx.iso) + +`dd if={{file.iso}} of=/dev/{{usb_drive}}` + +- Clone a drive to another drive with 4MB block and ignore error + +`dd if=/dev/{{source_drive}} of=/dev/{{dest_drive}} bs=4M conv=noerror` + +- Generating a file of 100 random bytes by using kernel random driver + +`dd if=/dev/urandom of={{random_file}} bs=100 count=1` + +- Benchmark the write performance of a disk + +`dd if=/dev/zero of={{file_1GB}} bs=1024 count=1000000` diff --git a/pages/osx/dd.md b/pages/osx/dd.md new file mode 100644 index 0000000000..edc6410c60 --- /dev/null +++ b/pages/osx/dd.md @@ -0,0 +1,19 @@ +# dd + +> convert and copy a file + +- Make a bootable usb drive from an isohybrid file (such like archlinux-xxx.iso) + +`dd if={{file.iso}} of=/dev/{{usb_drive}}` + +- Clone a drive to another drive with 4MB block and ignore error + +`dd if=/dev/{{source_drive}} of=/dev/{{dest_drive}} bs=4m conv=noerror` + +- Generating a file of 100 random bytes by using kernel random driver + +`dd if=/dev/urandom of={{random_file}} bs=100 count=1` + +- Benchmark the write performance of a disk + +`dd if=/dev/zero of={{file_1GB}} bs=1024 count=1000000`