Lines Matching refs:null
19 if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
27 case `(set -o) 2>/dev/null` in #(
122 && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
135 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
187 if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
204 if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
217 if expr a : '\(a\)' >/dev/null 2>&1 &&
224 if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
230 if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
239 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
268 *) echo `echo ksh88 bug on AIX 6.1` > /dev/null
280 mkdir conf$$.dir 2>/dev/null
282 if (echo >conf$$.file) 2>/dev/null; then
283 if ln -s conf$$.file conf$$ 2>/dev/null; then
289 ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
291 elif ln conf$$.file conf$$ 2>/dev/null; then
300 rmdir conf$$.dir 2>/dev/null
392 on `(hostname || uname -n) 2>/dev/null | sed 1q`
897 tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&