[SOLVED] Check for Dependencies

Question

Hey, I'm trying to write a script that'll check for dependencies to install and build something. I can check to see if the file exists but that seems kind of brute force. I'm trying to use
pacman -Q
but I can't get it quite right.
Example:
DEPS="python2-setuptools git curl wget"
if ( sudo pacman -Q $DEPS >/dev/null ) ; then
echo "Deps not installed, installing now"
sudo pacman -S $DEPS
else
echo "Dependencies met."
fi
But this always returns that DEPS aren't installed and prompts to reinstall.
Last edited by 0X1A (2013-10-03 18:55:03)

Answer 1

kaszak696 wrote:
Direct fix of your code would look like this:
#!/bin/bash
DEPS="python2-setuptools git curl wget"
pacman -Q $DEPS &> /dev/null
if [ $? -ne 0 ] ; then
echo "Deps not installed, installing now"
sudo pacman -S $DEPS
else
echo "Dependencies met."
fi
, but as pointed above, it's not the best approach, what exactly are you trying to accomplish?
This works, but still prompts for re-installation. I'm just trying to see if the user has those packages installed and if not then install them.