On 2022/11/29 23:05, Aaron Tomlin wrote:
> One might often find it useful to redirect/or filter the output
> generated by the 'ps' command. This simple patch provides an option
> (i.e. '-H') to display no header line so it does not need to be
> considered e.g.
>
> crash> ps -u -H | head -5
> 1 0 1 ffff956e8028d280 IN 0.0 174276 9272 systemd
> 1067 1 2 ffff956e81380000 IN 0.1 59480 15788 systemd-journal
> 1080 1 0 ffff956e8d152940 IN 0.0 36196 3548 systemd-udevd
> 1278 1 6 ffff956e8aa60000 IN 0.0 17664 3072 systemd-oomd
> 1366 1 7 ffff956e88548000 IN 0.0 10868 2328 dbus-broker-lau
>
> Signed-off-by: Aaron Tomlin <atomlin@xxxxxxxxxxx>
I like this :)
Acked-by: Kazuhito Hagio <k-hagio-ab@xxxxxxx>
Thanks,
Kazu
> ---
> help.c | 3 ++-
> task.c | 6 +++++-
> 2 files changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/help.c b/help.c
> index 99214c15..14981cd0 100644
> --- a/help.c
> +++ b/help.c
> @@ -1379,7 +1379,7 @@ NULL
> char *help_ps[] = {
> "ps",
> "display process status information",
> -"[-k|-u|-G|-y policy] [-s] [-p|-c|-t|-[l|m][-C cpu]|-a|-g|-r|-S|-A]\n [pid | task | command] ...",
> +"[-k|-u|-G|-y policy] [-s] [-p|-c|-t|-[l|m][-C cpu]|-a|-g|-r|-S|-A|-H]\n [pid | task | command] ...",
> " This command displays process status for selected, or all, processes" ,
> " in the system. If no arguments are entered, the process data is",
> " is displayed for all processes. Specific processes may be selected",
> @@ -1458,6 +1458,7 @@ char *help_ps[] = {
> " -r display resource limits (rlimits) of selected, or all, tasks.",
> " -S display a summary consisting of the number of tasks in a task state.",
> " -A display only the active task on each cpu.",
> +" -H display no header line.",
> "\nEXAMPLES",
> " Show the process status of all current tasks:\n",
> " %s> ps",
> diff --git a/task.c b/task.c
> index db2abc81..88941c7b 100644
> --- a/task.c
> +++ b/task.c
> @@ -3504,7 +3504,7 @@ cmd_ps(void)
> cpuspec = NULL;
> flag = 0;
>
> - while ((c = getopt(argcnt, args, "ASgstcpkuGlmarC:y:")) != EOF) {
> + while ((c = getopt(argcnt, args, "HASgstcpkuGlmarC:y:")) != EOF) {
> switch(c)
> {
> case 'k':
> @@ -3615,6 +3615,10 @@ cmd_ps(void)
> flag |= PS_ACTIVE;
> break;
>
> + case 'H':
> + flag |= PS_NO_HEADER;
> + break;
> +
> default:
> argerrs++;
> break;
--
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