Added grep -q, thanks to a patch from "Konstantin Boldyshev" <konst@voshod.com>

 -Erik

3 files changed, 42 insertions, 6 deletions

diff --git a/Changelog b/Changelog
index 2d2972c90..10e59233e 100644
--- a/Changelog
+++ b/Changelog
@@ -7,6 +7,8 @@
         * Fixed the embarrasing failure of the -p opition in the logger app. -erik
         * Re-worked the whole source tree a bit so it will compile under glibc 2.0.7 
             with the 2.0.x Linux kernel.
+        * Added 'grep -q' thanks to a patch from "Konstantin Boldyshev" 
+            <konst@voshod.com>.
 
         -Erik Andersen
 
diff --git a/findutils/grep.c b/findutils/grep.c
index 84bb99667..a0457df91 100644
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -21,6 +21,14 @@
  *
  */
 
+/*
+        18-Dec-1999     Konstantin Boldyshev <konst@voshod.com>
+
+        + -q option (be quiet) 
+        + exit code depending on grep result (TRUE or FALSE)
+          (useful for scripts)
+*/
+
 #include "internal.h"
 #include "regexp.h"
 #include <stdio.h>
@@ -37,13 +45,15 @@ static const char grep_usage[] =
 "OPTIONS:\n"
 "\t-h\tsuppress the prefixing filename on output\n"
 "\t-i\tignore case distinctions\n"
-"\t-n\tprint line number with output lines\n\n"
+"\t-n\tprint line number with output lines\n"
+"\t-q\tbe quiet\n\n"
 #if defined BB_REGEXP
 "This version of grep matches full regular expresions.\n";
 #else
 "This version of grep matches strings (not regular expresions).\n";
 #endif
 
+static int match = FALSE, beQuiet = FALSE;
 
 static void do_grep(FILE *fp, char* needle, char *fileName, int tellName, int ignoreCase, int tellLine)
 {
@@ -65,7 +75,10 @@ static void do_grep(FILE *fp, char* needle, char *fileName, int tellName, int ig
             if (tellLine==TRUE)
                 printf ("%ld:", line);
 
-            fputs (haystack, stdout);
+            if (beQuiet==FALSE)
+                fputs (haystack, stdout);
+
+            match = TRUE;
         }
     }
 }
@@ -109,6 +122,10 @@ extern int grep_main (int argc, char **argv)
                 tellLine = TRUE;
                 break;
 
+            case 'q':
+                beQuiet = TRUE;
+                break;
+
             default:
                 usage(grep_usage);
             }
@@ -136,7 +153,7 @@ extern int grep_main (int argc, char **argv)
             fclose (fp);
         }
     }
-    exit( TRUE);
+    exit(match);
 }
 
 
diff --git a/grep.c b/grep.c
index 84bb99667..a0457df91 100644
--- a/grep.c
+++ b/grep.c
@@ -21,6 +21,14 @@
  *
  */
 
+/*
+        18-Dec-1999     Konstantin Boldyshev <konst@voshod.com>
+
+        + -q option (be quiet) 
+        + exit code depending on grep result (TRUE or FALSE)
+          (useful for scripts)
+*/
+
 #include "internal.h"
 #include "regexp.h"
 #include <stdio.h>
@@ -37,13 +45,15 @@ static const char grep_usage[] =
 "OPTIONS:\n"
 "\t-h\tsuppress the prefixing filename on output\n"
 "\t-i\tignore case distinctions\n"
-"\t-n\tprint line number with output lines\n\n"
+"\t-n\tprint line number with output lines\n"
+"\t-q\tbe quiet\n\n"
 #if defined BB_REGEXP
 "This version of grep matches full regular expresions.\n";
 #else
 "This version of grep matches strings (not regular expresions).\n";
 #endif
 
+static int match = FALSE, beQuiet = FALSE;
 
 static void do_grep(FILE *fp, char* needle, char *fileName, int tellName, int ignoreCase, int tellLine)
 {
@@ -65,7 +75,10 @@ static void do_grep(FILE *fp, char* needle, char *fileName, int tellName, int ig
             if (tellLine==TRUE)
                 printf ("%ld:", line);
 
-            fputs (haystack, stdout);
+            if (beQuiet==FALSE)
+                fputs (haystack, stdout);
+
+            match = TRUE;
         }
     }
 }
@@ -109,6 +122,10 @@ extern int grep_main (int argc, char **argv)
                 tellLine = TRUE;
                 break;
 
+            case 'q':
+                beQuiet = TRUE;
+                break;
+
             default:
                 usage(grep_usage);
             }
@@ -136,7 +153,7 @@ extern int grep_main (int argc, char **argv)
             fclose (fp);
         }
     }
-    exit( TRUE);
+    exit(match);
 }