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--- unix_shell [2022/04/23 11:31] – 134.190.232.106
+++ unix_shell [2022/06/23 10:21] (current) – 134.190.232.106
@@ Line 1: / Line 1: @@
-//The commonly used scripts collected from previous Github page and course materials.//
+The commonly used scripts collected from previous Github page and course materials.
 .How to set up timer for specific script run?
@@ Line 141: / Line 141: @@
 </code>
-<Last updated by Xi Zhang on Oct 6th,2021>
+How to use sort in linux, especially ignore the header to sort special col?
+<code>
+(head -n 1 all.txt && tail -n +2 all.txt| sort -n -r -k2) > 123.txt
+# sort -n
+#sort -r
+#sort -k
+https://shapeshed.com/unix-sort/; https://stackoverflow.com/questions/14562423/is-there-a-way-to-ignore-header-lines-in-a-unix-sort
+</code>
+<Last updated by Xi Zhang on Oct 6th,2021> <June 23th,2022>