[bootlin/training-materials updates] master: common/strace.tex: mention "strace -f" (04fc8e59)

[Michael Opdenacker]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/04fc8e595a190f7be645edc23213943c519ac7d4

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commit 04fc8e595a190f7be645edc23213943c519ac7d4
Author: Michael Opdenacker <michael.opdenacker at bootlin.com>
Date:   Fri Sep 30 15:17:45 2022 +0200

    common/strace.tex: mention "strace -f"
    
    To follow child processes too
    
    Signed-off-by: Michael Opdenacker <michael.opdenacker at bootlin.com>


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04fc8e595a190f7be645edc23213943c519ac7d4
 common/strace.tex | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/common/strace.tex b/common/strace.tex
index 3bc6436d..9a6b985c 100644
--- a/common/strace.tex
+++ b/common/strace.tex
@@ -10,8 +10,9 @@
         Often sufficient to find simple bugs.
   \item Usage:\\
     \code{strace <command>} (starting a new process)\\
+    \code{strace -f <command>} ({\bf f}ollow child processes too)\\
     \code{strace -p <pid>} (tracing an existing process)\\
-    \code{strace -c <command>} (statistics of system calls taking most time)
+    \code{strace -c <command>} (time statistics per system call)
   \end{itemize}
   See \href{https://man7.org/linux/man-pages/man1/strace.1.html}{the strace manual} for details.
   \column{0.25\textwidth}