check if file already exists

diff --git a/grid/common.sh b/grid/common.sh
index 44ad69381ed09e212c99c1cb9001c2fb09ac7bb3..c466050077c53d5b93f20bc216fdbd292d367084 100644 (file)
--- a/grid/common.sh
+++ b/grid/common.sh
@@ -27,6 +27,12 @@ test "${answer}" == "n" && return 1
 check_user "${prompt}"
 }
 
+function file_exists {
+lfnfile="${1:?"provide lfn to file"}"
+lfc-ls ${lfnfile} 2>&1 > /dev/null
+}
+
+
 # common path used
 lfnbase="/grid/biomed/creatis/fgate/"
 lfnrelease="${lfnbase}releases/"