From: Ben Gras <ben@minix3.org>
Date: Fri, 12 Aug 2005 13:28:37 +0000 (+0000)
Subject: rotate script
X-Git-Tag: v3.1.0~345
X-Git-Url: http://zhaoyanbai.com/repos/doc/html/static/gitweb.css?a=commitdiff_plain;h=483c78ad0a3a93303e7f2b43940cedb74fa34dba;p=minix.git

rotate script
---

diff --git a/commands/scripts/Makefile b/commands/scripts/Makefile
index 94297165e..e5f28f0ab 100755
--- a/commands/scripts/Makefile
+++ b/commands/scripts/Makefile
@@ -34,6 +34,7 @@ usr:	\
 	/usr/bin/mkdep \
 	/usr/bin/mkdist \
 	/usr/bin/setup \
+	/usr/bin/rotate \
 	/usr/bin/floppysetup \
 	/usr/bin/spell \
 	/usr/bin/srccrc \
@@ -105,6 +106,9 @@ clean:
 /usr/bin/floppysetup:	floppysetup.sh
 	install -m 755 -c -o bin $? $@
 
+/usr/bin/rotate:	rotate.sh
+	install -m 755 -c -o bin $? $@
+
 /usr/bin/setup:	setup.sh
 	install -m 755 -c -o bin $? $@
 
diff --git a/commands/scripts/rotate.sh b/commands/scripts/rotate.sh
new file mode 100755
index 000000000..f5ca9789e
--- /dev/null
+++ b/commands/scripts/rotate.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+RM="rm -f"
+MV="mv -f"
+
+if [ $# -ne 2 ]
+then	echo "Usage: $0 <log> <keep>"
+	exit 1
+fi
+
+if [ ! -f "$1" ]
+then	echo "$1 doesn't exist or isn't a file."
+	exit 1
+fi
+
+if [ "$2" -le 0 ]
+then	echo "Keep at least 1 copy please."
+	exit 1
+fi
+
+k="$2"
+$RM "$1.$k" || exit 1
+while [ "$k" -ge 2 ]
+do	prev="`expr $k - 1`"
+	$MV $1.$prev.gz $1.$k.gz 2>/dev/null 
+	k=$prev
+done
+gzip -c $1 >$1.1.gz && : >$1