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Full Discussion: Bash code to create named Pipe
Top Forums Shell Programming and Scripting Bash code to create named Pipe Post 302593941 by knight_eon on Monday 30th of January 2012 02:54:29 AM
Old 01-30-2012
Quote:
Originally Posted by INHF
Guy's,

I need help with creating a pipe, I found this code online but not exactly sure what different parts are doing.

Will someone be able to help me with explaining what code is doing?

Also what I want is to have everything the same directory. Meaning I am working in directory:
I want to keep everything in Testing directory.

Thanks
Code:
#!/bin/bash
 
 
  HERE=`uname -n`    # Stores the node name of the host server
 
  THERE=<SERVER WHERE YOU WANT TO KEEP THE BACKUP>         #Server on which you want to store the backup
 
 MYDIR=/home/users/Bashwork/Testing
  PIPE=${MYDIR}/pipe
 
  echo "starting remote backup to $THERE at `date +%r`"
  # ==> `date +%r` returns time in 12-hour format, i.e. "08:08:34 PM".
  cd ${MYDIR}
 
  rm -rf ${PIPE}
  mkfifo ${PIPE}       # ==> Create a "named pipe", named "/pipe".
 
#What is this doing too?
 ## Assuming you want to create backup from your own user, USER
 
  su ${USER} -c "ssh $THERE \"cat >/home/xyz/backup/${HERE}-daily.tar.gz\" < ${PIPE}"&
 
 
  cd /
 
#This too?
 
  tar -czf - bin boot dev etc home info lib man root sbin share usr var >${PIPE}
 
## This is writing the new tar ball (backup of above mentioned folder) and writing on the PIPE
 
 
  exit 0

This User Gave Thanks to knight_eon For This Post:
INHF
 

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LEARN ABOUT V7

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)
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