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Top Forums UNIX for Advanced & Expert Users Automate Script using pkgrm/pkgadd commands Post 302239616 by Insight on Wednesday 24th of September 2008 06:02:40 AM
Old 09-24-2008
Automate Script using pkgrm/pkgadd commands

This is my first post so hello to all of you!

I have a script in bash-3.00 that needs to execute the following:

pkgrm [package-name] (to remove an existing package)
pkgadd -d [package-path] ( to install a new package)

The problem is that both commands prompt me to answer either y,n or q in order to proceed with removal/addition 3 times each. If I just run the command I will have to type 'y' and press Enter 3 times (for pkgrm) and type 'all' one time and 'y' two times both followed by Enter (for pkgadd).

I tried to automate this using the following:

echo "Removing existing package..."
pkgrm $PACKAGE << EOF
y
y
y
EOF

echo "Adding new package..."
pkgadd -d $PATH/$PACKAGE.pkg << EOF
all
y
y
EOF

but it's not working. In fact only the first input line works (first 'y' for pkgrm and 'all' for pkgadd) and then the command exits as If I had typed 'q'.

Can anyone help me on this? Is there any way that I can automate this so that I won't have to answer the questions manually?

Thanks,

Insight
 

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ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME
ppmtosixel - convert a portable pixmap into DEC sixel format SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC LJ250 color inkjet printer. If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file. OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com- pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni- tude larger than a compressed file and prints much slower. -margin If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci- fied, a 1.5 inch left margin will offset the image. PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?. BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation. SEE ALSO
ppm(5) AUTHOR
Copyright (C) 1991 by Rick Vinci. 26 April 1991 ppmtosixel(1)
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