@@ -4,7 +4,7 @@
nstat, rtacct - network statistics tools.
.SH SYNOPSIS
-Usage: nstat [ -h?vVzrnasd:t:jp ] [ PATTERN [ PATTERN ] ]
+Usage: nstat [ -h?vVzrnasd:t:jpi ] [ PATTERN [ PATTERN ] ]
.br
Usage: rtacct [ -h?vVzrnasd:t: ] [ ListOfRealms ]
@@ -14,6 +14,9 @@ and
.B rtacct
are simple tools to monitor kernel snmp counters and network interface statistics.
+.B nstat
+can filter kernel snmp counters by name with one or several specified wildcards.
+
.SH OPTIONS
.B \-h, \-\-help
Print help
@@ -44,6 +47,9 @@ When combined with
.BR \-\-json ,
pretty print the output.
.TP
+.B \-i, \-\-nocase
+Ignore case in pattern matching.
+.TP
.B \-d, \-\-scan <INTERVAL>
Run in daemon mode collecting statistics. <INTERVAL> is interval between measurements in seconds.
.TP
@@ -43,6 +43,7 @@ int time_constant;
double W;
char **patterns;
int npatterns;
+int nocase;
char info_source[128];
int source_mismatch;
@@ -114,7 +115,7 @@ static int match(const char *id)
return 1;
for (i = 0; i < npatterns; i++) {
- if (!fnmatch(patterns[i], id, 0))
+ if (!fnmatch(patterns[i], id, nocase ? FNM_CASEFOLD : 0))
return 1;
}
return 0;
@@ -551,6 +552,7 @@ static void usage(void)
" -h, --help this message\n"
" -a, --ignore ignore history\n"
" -d, --scan=SECS sample every statistics every SECS\n"
+ " -i, --nocase ignore case in pattern matching\n"
" -j, --json format output in JSON\n"
" -n, --nooutput do history only\n"
" -p, --pretty pretty print\n"
@@ -566,11 +568,12 @@ static const struct option longopts[] = {
{ "help", 0, 0, 'h' },
{ "ignore", 0, 0, 'a' },
{ "scan", 1, 0, 'd'},
- { "nooutput", 0, 0, 'n' },
+ { "nocase", 0, 0, 'i' },
{ "json", 0, 0, 'j' },
+ { "nooutput", 0, 0, 'n' },
+ { "pretty", 0, 0, 'p' },
{ "reset", 0, 0, 'r' },
{ "noupdate", 0, 0, 's' },
- { "pretty", 0, 0, 'p' },
{ "interval", 1, 0, 't' },
{ "version", 0, 0, 'V' },
{ "zeros", 0, 0, 'z' },
@@ -585,7 +588,7 @@ int main(int argc, char *argv[])
int ch;
int fd;
- while ((ch = getopt_long(argc, argv, "h?vVzrnasd:t:jp",
+ while ((ch = getopt_long(argc, argv, "h?vVzrnasd:t:jpi",
longopts, NULL)) != EOF) {
switch (ch) {
case 'z':
@@ -619,6 +622,9 @@ int main(int argc, char *argv[])
case 'p':
pretty = 1;
break;
+ case 'i':
+ nocase = 1;
+ break;
case 'v':
case 'V':
printf("nstat utility, iproute2-ss%s\n", SNAPSHOT);
The option 'nocase' allows ignore case in the pattern matching. Examples: nstat --nocase *drop* nstat -azi icmp* Signed-off-by: Anton Danilov <littlesmilingcloud@gmail.com> --- man/man8/rtacct.8 | 8 +++++++- misc/nstat.c | 14 ++++++++++---- 2 files changed, 17 insertions(+), 5 deletions(-)