61 lines
730 B
Text
61 lines
730 B
Text
OIFS="$IFS"
|
|
IFS=":$IFS"
|
|
eval foo="a:b:c"
|
|
IFS="$OIFS"
|
|
echo $foo
|
|
|
|
OIFS=$IFS
|
|
IFS=":$IFS"
|
|
foo=$(echo a:b:c)
|
|
IFS=$OIFS
|
|
|
|
for i in $foo
|
|
do
|
|
echo $i
|
|
done
|
|
|
|
OIFS=$IFS
|
|
IFS=":$IFS"
|
|
foo=`echo a:b:c`
|
|
IFS=$OIFS
|
|
|
|
for i in $foo
|
|
do
|
|
echo $i
|
|
done
|
|
|
|
DEFIFS=$' \t\n'
|
|
|
|
# local copy of IFS that shadows global version
|
|
function f
|
|
{
|
|
typeset IFS=:
|
|
|
|
echo $1
|
|
}
|
|
|
|
function ff
|
|
{
|
|
echo $1
|
|
}
|
|
|
|
f a:b:c:d:e
|
|
x=a:b:c:d:e
|
|
echo $x
|
|
|
|
IFS=: ff a:b:c:d:e
|
|
echo $x
|
|
|
|
# doesn't get word split
|
|
IFS=$DEFIFS
|
|
# variable assignment doesn't use new value for word splitting
|
|
IFS=: echo $x
|
|
# but does this time because of the eval
|
|
IFS=: eval echo \$x
|
|
|
|
# in posix mode, assignments preceding special builtins and functions are global
|
|
set -o posix
|
|
IFS=: export x
|
|
echo $x
|
|
|
|
IFS="$DEFIFS"
|