ar
ag-like text replacement tool.
- few arguments; Replace files under the current directory (recursive).
- human readable; Output replacement result as an Unified diff format.
usage
$ ar [-d|-dry] <before> <after> [<target file/dir> ...]
in-place mode (default)
$ cat txtfile
A test text file
$ ar test replaced
--- a/txtfile
+++ b/txtfile
@@ -1,1 +1,1 @@
-A test text file
+A replaced text file$ cat txtfile
A replaced text file
dry-run mode
$ cat txtfile
A test text file
$ ar test replaced -dry | tee replace.patch
--- a/txtfile
+++ b/txtfile
@@ -1,1 +1,1 @@
-A test text file
+A replaced text file$ cat txtfile
A test text file
$ patch -p1 replace.patch
patching file txtfile
$ cat txtfile
A replaced text file