[bootlin/training-materials updates] master: common: strace: add mention to expressions (238e4890)

[Alexis Lothoré]

Repository : https://github.com/bootlin/training-materials
On branch  : master
Link       : https://github.com/bootlin/training-materials/commit/238e4890be76d498667ea342d502a9f7ed2bb2ca

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commit 238e4890be76d498667ea342d502a9f7ed2bb2ca
Author: Alexis Lothoré <alexis.lothore at bootlin.com>
Date:   Wed Jul 5 09:56:54 2023 +0200

    common: strace: add mention to expressions
    
    Once strace basics have been introduced, trainees will likely want to know
    how to filter strace output. Mention the -e option to at least let them
    know that a mechanism exist, without detailing it too much for now
    
    Fixes #193
    
    Signed-off-by: Alexis Lothoré <alexis.lothore at bootlin.com>


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238e4890be76d498667ea342d502a9f7ed2bb2ca
 common/strace.tex | 1 +
 1 file changed, 1 insertion(+)

diff --git a/common/strace.tex b/common/strace.tex
index 9a6b985c..3c242200 100644
--- a/common/strace.tex
+++ b/common/strace.tex
@@ -13,6 +13,7 @@
     \code{strace -f <command>} ({\bf f}ollow child processes too)\\
     \code{strace -p <pid>} (tracing an existing process)\\
     \code{strace -c <command>} (time statistics per system call)
+    \code{strace -e <expr> <command>} (use {\bf e}xpression for advanced filtering)
   \end{itemize}
   See \href{https://man7.org/linux/man-pages/man1/strace.1.html}{the strace manual} for details.
   \column{0.25\textwidth}