From 1b234ff597d4eceb5774c81a8b3befc567c20692 Mon Sep 17 00:00:00 2001
From: tpoindex <tpoindex@gmail.com>
Date: Wed, 11 Sep 2019 23:53:56 -0600
Subject: [PATCH] avoid collisions with common /usr/bin/ commands

rename head, tail, zip to lhead, ltail, and lzip to avoid collisions with command unix commands
---
 src/fun.sh        |  6 +++---
 test/head_test.sh | 16 ++++++++--------
 test/tail_test.sh | 14 +++++++-------
 3 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/src/fun.sh b/src/fun.sh
index 5d44542..08f3bc1 100755
--- a/src/fun.sh
+++ b/src/fun.sh
@@ -8,11 +8,11 @@ take() {
   command head -n ${1}
 }
 
-tail() {
+ltail() {
   drop 1
 }
 
-head() {
+lhead() {
   take 1
 }
 
@@ -316,7 +316,7 @@ ntupr() {
   ntupx 1- "$@" | last
 }
 
-zip() {
+lzip() {
   local list=$*
   cat - | while read x; do
     y=$(list $list | take 1)
diff --git a/test/head_test.sh b/test/head_test.sh
index 3ea2a7f..90ea201 100755
--- a/test/head_test.sh
+++ b/test/head_test.sh
@@ -1,16 +1,16 @@
 #! /bin/bash
 
-testHeadFromList() {
-  assertEquals 1 $(list {1..10} | head)
-  assertEquals 5 $(list 5 6 7 | head)
+testLHeadFromList() {
+  assertEquals 1 $(list {1..10} | lhead)
+  assertEquals 5 $(list 5 6 7 | lhead)
 }
 
-testHeadFromOneElementList() {
-  assertEquals 1 $(list 1 | head)
+testLHeadFromOneElementList() {
+  assertEquals 1 $(list 1 | lhead)
 }
 
-testHeadFromEmptyList() {
-  assertEquals "" "$(list | head)"
+testLHeadFromEmptyList() {
+  assertEquals "" "$(list | lhead)"
 }
 
-. ./shunit2-init.sh
\ No newline at end of file
+. ./shunit2-init.sh
diff --git a/test/tail_test.sh b/test/tail_test.sh
index 57971ad..b2b19f5 100755
--- a/test/tail_test.sh
+++ b/test/tail_test.sh
@@ -1,15 +1,15 @@
 #! /bin/bash
 
-testTailFrom10() {
-  assertEquals "2 3 4 5 6 7 8 9 10" "$(list {1..10} | tail | unlist)"
+testLTailFrom10() {
+  assertEquals "2 3 4 5 6 7 8 9 10" "$(list {1..10} | ltail | unlist)"
 }
 
-testTailFromOneElementList() {
-  assertEquals "" "$(list 1 | tail)"
+testLTailFromOneElementList() {
+  assertEquals "" "$(list 1 | ltail)"
 }
 
-testTailFromEmptyList() {
-  assertEquals "" "$(list | tail)"
+testLTailFromEmptyList() {
+  assertEquals "" "$(list | ltail)"
 }
 
-. ./shunit2-init.sh
\ No newline at end of file
+. ./shunit2-init.sh