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Add a warming help message under the help command ##shell #23077

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merged 1 commit into from
Jun 28, 2024
Merged

Add a warming help message under the help command ##shell #23077

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38 changes: 37 additions & 1 deletion libr/core/cmd.c
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,31 @@

#define SPECIAL_CHARS "@;~$#|`\"'()<>"

static const char help_message[] = \
"\nWelcome to radare2!\n" \
"\n" \
"* Type `?` for the root list of commands. \n" \
"* Append the `?` to any command to list the sub-commands.\n" \
"* Prefix the command with `'` to avoid evaluating special chars\n" \
"* The `@` modifier can be used for temporal seeks\n" \
"* The `~` represents the internal grep. System pipes also work `|`.\n" \
"* Multiple commands can be chained with `;`.\n" \
"* Run external scripts with the `.` source command (r2, r2js, python, ..) \n" \
"* Use the `?*~...` command to inspect all the commands in visual mode\n" \
"\n" \
"Use the `e` command to change the configuration options.\n" \
"* Run `edit` to tweak your ~/.radare2rc script\n" \
"\n" \
"Basic commands:\n" \
"\n" \
"* s [addr] - seek to a different address\n" \
"* px, pd - print hexadecimal, disassembly (pdf/pdr the whole function)\n" \
"* wx, wa - write hexpairs, write assembly (w - write string)\n" \
"* aaa, af - analyze the whole program or function\n" \
"* /, /x - search for strings or hexadecimal patterns\n" \
"* f~... - search for strings or hexadecimal patterns\n" \
"* q - quit (alias for ^D or exit)\n";

static bool isAnExport(RBinSymbol *s) {
/* workaround for some bin plugs */
if (s->is_imported) {
Expand Down Expand Up @@ -711,6 +736,17 @@ static int cmd_head(void *data, const char *_input) { // "head"
return 0;
}

static int cmd_h(void *data, const char *_input) { // "head"
if (r_str_startswith (_input, "ead")) {
return cmd_head (data, _input);
}
if (r_str_startswith (_input, "elp")) {
r_cons_printf ("%s\n", help_message);
return 0;
}
return -1; // invalid command
}

static int cmd_undo(void *data, const char *input) {
RCore *core = (RCore *)data;
switch (input[0]) {
Expand Down Expand Up @@ -6704,7 +6740,7 @@ R_API void r_core_cmd_init(RCore *core) {
{ "k", "perform sdb query", cmd_kuery },
{ "l", "list files and directories", cmd_l },
{ "j", "join the contents of the two files", cmd_join },
{ "h", "show the top n number of line in file", cmd_head },
{ "h", "show the top n number of line in file", cmd_h },
{ "L", "manage dynamically loaded plugins", cmd_plugins },
{ "m", "mount filesystem", cmd_mount },
{ "o", "open or map file", cmd_open },
Expand Down
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