Port all scripts to sh

Not hard, but having to escape ( ) inside [ ] had me confused for a bit.

3 files changed, 11 insertions, 11 deletions

diff --git a/link.zsh b/link.sh
index a0a9e7aa..0f1f49aa 100755
--- a/link.zsh
+++ b/link.sh
@@ -1,10 +1,10 @@
-#!/usr/bin/env zsh
-set -o errexit -o nounset -o pipefail
+#!/bin/sh
+set -e -u
 
-if [[ $# -eq 1 ]]; then
-	linkPath="$1"
+if [ $# -eq 1 ]; then
+	linkPath=$1
 	filePath="$PWD/home/${linkPath#$HOME/}"
-	[[ ! -f "$filePath" ]]
+	[ ! -f "$filePath" ]
 	mkdir -p "$(dirname "$filePath")"
 	mv "$linkPath" "$filePath"
 fi
@@ -13,6 +13,6 @@ find home -type f | while read -r findPath; do
 	filePath="$PWD/$findPath"
 	linkPath="$HOME/${findPath#home/}"
 	mkdir -p "$(dirname "$linkPath")"
-	[[ ( -f "$linkPath" && -L "$linkPath" ) || ! -f "$linkPath" ]]
+	[ \( -f "$linkPath" -a -L "$linkPath" \) -o ! -f "$linkPath" ]
 	ln -s -f "$filePath" "$linkPath"
 done
diff --git a/pdf.zsh b/pdf.sh
index 25458dfa..90c73de1 100755
--- a/pdf.zsh
+++ b/pdf.sh
@@ -1,10 +1,10 @@
-#!/usr/bin/env zsh
-set -o errexit -o nounset -o pipefail
+#!/bin/sh
+set -e -u
 
 mkdir -p pdf
 
 fetch() {
-	[[ -f "pdf/$1" ]] && return
+	[ -f "pdf/$1" ] && return
 	curl --silent --show-error --output "pdf/$1" "$2"
 	echo "pdf/$1"
 }
diff --git a/prune.zsh b/prune.sh
index db85a9d1..31ab30cf 100755
--- a/prune.zsh
+++ b/prune.sh
@@ -1,5 +1,5 @@
-#!/usr/bin/env zsh
-set -o errexit -o nounset -o pipefail
+#!/bin/sh
+set -e -u
 
 find -L ~ -type l -lname "$PWD/*" | while read -r linkPath; do
 	rm "$linkPath"