小编Zle*_*ni 的帖子

用大括号将 shell 脚本中的所有行括起来的原因是什么？

例如，这个脚本的全部内容 都用大括号括起来：

#!/bin/sh

{
set -e

LATEST="v0.3.5"
DGOSS_VER=$GOSS_VER

if [ -z "$GOSS_VER" ]; then
    GOSS_VER=${GOSS_VER:-$LATEST}
    DGOSS_VER='master'
fi
GOSS_DST=${GOSS_DST:-/usr/local/bin}
INSTALL_LOC="${GOSS_DST%/}/goss"
DGOSS_INSTALL_LOC="${GOSS_DST%/}/dgoss"
touch "$INSTALL_LOC" || { echo "ERROR: Cannot write to $GOSS_DST set GOSS_DST elsewhere or use sudo"; exit 1; }

arch=""
if [ "$(uname -m)" = "x86_64" ]; then
    arch="amd64"
else
    arch="386"
fi

url="https://github.com/aelsabbahy/goss/releases/download/$GOSS_VER/goss-linux-$arch"

echo "Downloading $url"
curl -L "$url" -o "$INSTALL_LOC"
chmod +rx "$INSTALL_LOC"
echo "Goss $GOSS_VER has been installed to $INSTALL_LOC"
echo "goss --version"
"$INSTALL_LOC" …