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Emperor · May 2nd, 2007, 2:29 AM

Hey guys, how do you make a variable accessible to a subshell? Also, do you use for OR aka || in a pathname? Is it ||? Thanks for any help.

jim mcnamara · May 4th, 2007, 11:24 AM

#Bourne shell
VARIABLE="something"
export VARIABLE
#ksh, zsh, bash
export VARIABLE="something"

OR in a pathname? Do you mean this

if [[ -d /path/one || -d /path/two ]] ; then
  echo "At least one of these two is a valid path"
fi

Fourth · Jun 27th, 2007, 7:39 PM

if you wanna specify OR in a conditional its -o i believe. i.e

if [ -d /path/one -o -d /path/two ] ; then
  echo "At least one of these two is a valid path"
fi

assuming thats what you are asking.

May 2nd, 2007, 2:29 AM	#1
Emperor Newbie Join Date: Apr 2005 Posts: 10 Rep Power: 0	Making a variable sub-shell accessible? Hey guys, how do you make a variable accessible to a subshell? Also, do you use for OR aka \|\| in a pathname? Is it \|\|? Thanks for any help.

May 4th, 2007, 11:24 AM	#2
jim mcnamara Hobbyist Programmer Join Date: Jun 2005 Location: New Mexico Posts: 228 Rep Power: 4	(Toggle Plain Text) #Bourne shell VARIABLE="something" export VARIABLE #ksh, zsh, bash export VARIABLE="something" #Bourne shell VARIABLE="something" export VARIABLE #ksh, zsh, bash export VARIABLE="something" OR in a pathname? Do you mean this (Toggle Plain Text) if [[ -d /path/one \|\| -d /path/two ]] ; then echo "At least one of these two is a valid path" fi if [[ -d /path/one \|\| -d /path/two ]] ; then echo "At least one of these two is a valid path" fi

Jun 27th, 2007, 7:39 PM	#3
Fourth Newbie Join Date: May 2007 Posts: 3 Rep Power: 0	if you wanna specify OR in a conditional its -o i believe. i.e (Toggle Plain Text) if [ -d /path/one -o -d /path/two ] ; then echo "At least one of these two is a valid path" fi if [ -d /path/one -o -d /path/two ] ; then echo "At least one of these two is a valid path" fi assuming thats what you are asking.

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Making a variable sub-shell accessible?