diff --git a/bashrc-alice.sh b/bashrc-alice.sh
index a3b93aa..f0e1c72 100644
--- a/bashrc-alice.sh
+++ b/bashrc-alice.sh
@@ -89,5 +89,5 @@ debug-o2-compile() {
 # Find runtime error messages in an execution log.
 debug-o2-run() {
   [ "$1" ] || { echo "Provide a log file"; return 1; }
-  grep -n -e "\\[ERROR\\]" -e "\\[FATAL\\]" -e "\\[CRITICAL\\]" -e "segmentation" -e "Segmentation" -e "SEGMENTATION" -e "command not found" -e "Program crashed" -e "Error:" -e "Error in " -e "\\[WARN\\]" -e "Warning in " "$1"
+  grep -n -e "\\[ERROR\\]" -e "\\[FATAL\\]" -e "\\[CRITICAL\\]" -e "segmentation" -e "Segmentation" -e "SEGMENTATION" -e "command not found" -e "Program crashed" -e "Error:" -e "Error in " -e "failed" -e "\\[WARN\\]" -e "Warning in " "$1"
 }
diff --git a/bashrc-server-admin.sh b/bashrc-server-admin.sh
index 46aace2..e7fba19 100644
--- a/bashrc-server-admin.sh
+++ b/bashrc-server-admin.sh
@@ -78,7 +78,7 @@ inactive-users-size() {
 memory-ok() {
   [ "$1" ] || { echo "Provide the minimum memory fraction"; return 1; }
   frac_min="$1"
-  return "$(free | grep Mem | awk -v frac_min="$frac_min" '{print ($7 < $2 * frac_min) ? 1 : 0}')";
+  return "$(free | awk -v frac_min="$frac_min" 'FNR == 2 {print ($7 < $2 * frac_min) ? 1 : 0}')";
 }
 
 # Show n_proc processes taking the most memory.
diff --git a/clean-tmp.sh b/clean-tmp.sh
index e8c3331..f13ca85 100755
--- a/clean-tmp.sh
+++ b/clean-tmp.sh
@@ -14,7 +14,7 @@ sudo apt clean
 echo "Moving files to trash bin"
 gio trash -f \
 "$HOME"/.aliensh_history \
-"$HOME"/.bash_history \
+"$HOME"/.bash_history* \
 "$HOME"/.cache/doublecmd/thumbnails/* \
 "$HOME"/.cache/mintinstall/screenshots/* \
 "$HOME"/.cache/thumbnails/*/*.png \
diff --git a/shreddir.sh b/shreddir.sh
index 8583d7d..8ea2f73 100755
--- a/shreddir.sh
+++ b/shreddir.sh
@@ -5,6 +5,6 @@
 [ -d "$1" ] || { echo "Directory $1 does not exist"; exit 1; }
 
 echo "Shredding directory: $1"
-find "$1" -depth -type f -exec "$(dirname "$(realpath "$0")")"/shred.sh {} \; && rm -rf "$1"
+find "$1" -depth -type f -exec "$(dirname "$(realpath "$0")")"/shred.sh {} \;
 
 exit 0