flake: Restructure home/

home/alex/local/bin/kill-old-mosh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+mysession=$(cat /proc/self/sessionid)
+count=0
+while read pid _; do
+	session=$(cat /proc/$pid/sessionid)
+	if [ "$mysession" != "$session" ]; then 
+		if kill $pid; then
+			echo 2>&1 "stale mosh session $pid killed"
+	                count=$((count + 1))
+		fi
+	fi
+done <<<$(ps -C mosh-server -o pid=,etimes= | sort -k 2 -r)
+
+if [[ $count -eq 0 ]]; then
+	echo 2>&1 "No stale mosh session found"
+fi

home/alex/local/bin/merge-pdf

@@ -0,0 +1,74 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -i bash -p ghostscript -p coreutils
+#
+# Local Variables:
+# mode: sh
+# End:
+#
+
+workdir=
+keep_workdir=false
+output=-
+
+function usage {
+    cat <<EOF
+usage: merge-pdf [options] files...
+
+options:
+  -o FILE    write result to FILE (default: -)
+EOF
+}
+
+function cleanup {
+    if [ x"${keep_workdir}" != x"true" ]; then
+        if [ -d "${workdir}" ]; then
+            rm -rf "${workdir}"
+        fi
+    fi
+}
+
+trap "cleanup" EXIT
+
+while getopts ":ho:k" o; do
+   case "$o" in
+       h)
+           usage
+           exit 0
+           ;;
+       o)
+           output="$OPTARG"
+           ;;
+       k)
+           keep_workdir=true
+           ;;
+       *)
+           usage
+           exit 1
+           ;;
+   esac
+done
+
+shift $((OPTIND - 1))
+
+workdir=$(mktemp -d)
+
+echo >&2 "[INFO] Putting temporary files into ${workdir}"
+
+files=()
+for f; do
+    fname=$(basename "$f" .pdf)
+    of="${workdir}/${fname}.ps"
+    echo >&2 "[PS  ] \"${f}\" -> \"${of}\""
+    pdf2ps "$f" "${of}" >&/dev/null
+    files+=("$of")
+done
+
+echo >&2 "[PDF ] combining ${#files[@]} file(s) into ${output}"
+
+gs -dNOPAUSE -sDEVICE=pdfwrite \
+    -dPDFSETTINGS=/prepress \
+    -sPAPERSIZE=a4 \
+    -sFIXEDMEDIA \
+    -sOUTPUTFILE="${output}" \
+    -dBATCH \
+    "${files[@]}" >&/dev/null