Simplify and abstract from "$tmp"

- Add input and write to basic.sh to no longer need to know "$tmp" in
  the calling scripts.

Also,
- make runnable from outside the directory containing the scripts,
- simplify chained grep and sed commands.

1 files changed, 14 insertions, 0 deletions

diff --git a/basic.sh b/basic.sh
index 77d893b..891d9c5 100644
--- a/basic.sh
+++ b/basic.sh
@@ -47,6 +47,20 @@ function init
 	tmp_="$tmp_d/b"
 }
 
+# $1: file to treat as input: filename
+# requires: init to be run
+function input
+{
+	cp "$1" "$tmp"
+}
+
+# $1: file to write to: filename
+# requires: init and input to be run
+function write
+{
+	cp "$tmp" "$1"
+}
+
 function cleanup
 {
 	rm -rf "$tmp_d"