procps/procps-3.2.8-pgrep_coption.dif

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--- pgrep.1
+++ pgrep.1 2007-10-05 14:36:42.000000000 +0200
@@ -7,7 +7,7 @@
pgrep, pkill \- look up or signal processes based on name and other attributes
.SH SYNOPSIS
-pgrep [\-flvx] [\-d \fIdelimiter\fP] [\-n|\-o] [\-P \fIppid\fP,...] [\-g \fIpgrp\fP,...]
+pgrep [\-cflvx] [\-d \fIdelimiter\fP] [\-n|\-o] [\-P \fIppid\fP,...] [\-g \fIpgrp\fP,...]
.br
[\-s \fIsid\fP,...] [\-u \fIeuid\fP,...] [\-U \fIuid\fP,...] [\-G \fIgid\fP,...]
.br
@@ -38,6 +38,9 @@ to each process instead of listing them
.SH OPTIONS
.TP
+\-c
+Suppress normal output; instead print a count of matching processes.
+.TP
\-d \fIdelimiter\fP
Sets the string used to delimit each process ID in the output (by
default a newline). (\fBpgrep\fP only.)
--- pgrep.c
+++ pgrep.c 2009-05-11 12:38:44.945901308 +0200
@@ -54,6 +54,7 @@ static int opt_oldest = 0;
static int opt_newest = 0;
static int opt_negate = 0;
static int opt_exact = 0;
+static int opt_count = 0;
static int opt_signal = SIGTERM;
static int opt_lock = 0;
static int opt_case = 0;
@@ -564,7 +565,7 @@ static void parse_opts (int argc, char *
strcat (opts, "ld:");
}
- strcat (opts, "LF:fnovxP:g:s:u:U:G:t:?V");
+ strcat (opts, "LF:cfnovxP:g:s:u:U:G:t:?V");
while ((opt = getopt (argc, argv, opts)) != -1) {
switch (opt) {
@@ -612,6 +613,9 @@ static void parse_opts (int argc, char *
exit(EXIT_SUCCESS);
// case 'c': // Solaris: match by contract ID
// break;
+ case 'c':
+ opt_count = 1;
+ break;
case 'd': // Solaris: change the delimiter
opt_delim = strdup (optarg);
break;
@@ -723,10 +727,14 @@ int main (int argc, char *argv[])
procs[i].num, strerror (errno));
}
} else {
- if (opt_long)
- output_strlist(procs,num);
- else
- output_numlist(procs,num);
+ if (opt_count) {
+ fprintf(stdout, "%ld\n", num);
+ } else {
+ if (opt_long)
+ output_strlist (procs,num);
+ else
+ output_numlist (procs,num);
+ }
}
return !num; // exit(EXIT_SUCCESS) if match, otherwise exit(EXIT_FAILURE)
}