add aliases == and [[ for = and [ to support more bash scripts
diff --git a/coreutils/test.c b/coreutils/test.c
index 8fa6d16..cec3c47 100644
--- a/coreutils/test.c
+++ b/coreutils/test.c
@@ -51,7 +51,7 @@
unary-operator ::= "-r"|"-w"|"-x"|"-f"|"-d"|"-c"|"-b"|"-p"|
"-u"|"-g"|"-k"|"-s"|"-t"|"-z"|"-n"|"-o"|"-O"|"-G"|"-L"|"-S";
- binary-operator ::= "="|"!="|"-eq"|"-ne"|"-ge"|"-gt"|"-le"|"-lt"|
+ binary-operator ::= "="|"=="|"!="|"-eq"|"-ne"|"-ge"|"-gt"|"-le"|"-lt"|
"-nt"|"-ot"|"-ef";
operand ::= <any legal UNIX file name>
*/
@@ -135,6 +135,7 @@
"-L", FILSYM, UNOP}, {
"-S", FILSOCK, UNOP}, {
"=", STREQ, BINOP}, {
+ "==", STREQ, BINOP}, {
"!=", STRNE, BINOP}, {
"<", STRLT, BINOP}, {
">", STRGT, BINOP}, {
@@ -191,6 +192,11 @@
bb_error_msg_and_die("missing ]");
argv[argc] = NULL;
}
+ if (strcmp(bb_applet_name, "[[") == 0) {
+ if (strcmp(argv[--argc], "]]"))
+ bb_error_msg_and_die("missing ]]");
+ argv[argc] = NULL;
+ }
/* Implement special cases from POSIX.2, section 4.62.4 */
switch (argc) {
case 1: