我正在使用bash shell,并尝试处理文本文件以将换行符替换为带有“ \ n”的单个行字符串。示例:
源文件:
apiVersion: v1
clusters:
- cluster:
certificate-authority-data: LOOOONG-STRING
server: https://1.2.3.4:8443
name: cluster-name
contexts:
- context:
cluster: cluster-name
user: cluster-admin
name: cluster-admin@cluster-name
current-context: cluster-admin@cluster-name
kind: Config
preferences: {}
users:
- name: cluster-admin
user:
client-certificate-data: LOOOONG-STRING
client-key-data: LOOOONG-STRING
所需的输出
apiVersion: v1\nclusters:\n- cluster:\n certificate-authority-data: LOOOONG-STRING\n server: https://1.2.3.4:8443\n name: cluster-name\ncontexts:\n- context:\n cluster: cluster-name\n user: cluster-admin\n name: cluster-admin@cluster-name\ncurrent-context: cluster-admin@cluster-name\nkind: Config\npreferences: {}\nusers:\n- name: cluster-admin\n user:\n client-certificate-data: LOOOONG-STRING\n client-key-data: LOOOONG-STRING
我在这里尝试了许多tr和sed示例,但无法完成。谢谢。
答案 0 :(得分:0)
尝试一下:
sed -e :a -e '$!N;s/\n/\\\n/;ta' file
使用Gnu sed,您可能只需要转义一次新行:
sed -e :a -e '$!N;s/\n/\\n/;ta' file
所有行都合并,新行字符替换为\\\n
。
您可以添加-i
标志以在适当位置编辑文件或将输出重定向到新文件:
sed -e :a -e '$!N;s/\n/\\\n/;ta' file > newfile