This stackoverflow question可以使用sed':a; N; $!ba; s / \ n / / g'。
格式替换换行符。这适用,但不适用于\ r,\ n等特殊字符
我尝试做的是用文字\ n替换换行符。 试过
sed ':a;N;$!ba;s/\n/\\n/g'
和
sed ':a;N;$!ba;s/\n/\\\n/g'
也
sed ":a;N;$!ba;s/\n/'\'n/g"
但都无济于事。 Sed不断用换行符代替换行符....
思想?
为了完整起见,运行的命令是:
PostContent = cat $TextTable | sed -E ':a;N;$!ba;s/\r{0,1}\n/\\n/g'
其中TextTable是一个变量,链接到包含以下格式的JSON输出的文本文件:
{"posts":[{"title":"mysupertest","slug":"bi-test","markdown":"##TEST
First things first !
To TEST this TEST TEST, click the download button below.
If you need more information about the TEST TEST, you can read the Table of Contents below.
<a href='/assets/TEST.pdf' style='border-radius:5px; padding: 4px 15px; background-color:#008CBA; color:white; text-decoration:none; float:right;' download> Download </a>
##TEST OF TEST
###TEST TEST PLATFORM TEST GUIDE
WaTESTve TEST SetupTEST
TESTTEST
TESTTESTETESTTETSTTEST
TESTTESTTTETST
TESTTES
TESTTESTESSTSTESTESTTES
TEST","image":"http://localhost:3000/myimage.jpg","featured":false,"page":false,"status":"draft","language":"en_US","meta_title":null,"meta_description":null,"author":"4","publishedBy":null,"tags":[{"uuid":"ember2034","name":"implementation guides","slug":null,"description":null,"meta_title":null,"meta_description":null,"image":null,"visibility":"public"}]}]}
答案 0 :(得分:59)
这就是你想要的吗?
$ cat file
a
b
c
$ awk '{printf "%s\\n", $0}' file
a\nb\nc\n$
甚至:
$ awk -v ORS='\\n' '1' file
a\nb\nc\n$
首先在输入文件上运行dos2unix,如果你愿意,可以去掉\r
,或者使用-v RS='\r?\n'
和GNU awk,或者在printf或者其他任何一个之前使用sub(/\r$/,"");
或者如此清晰,简单的处理方式。
sed用于单个行上的简单替换,即全部。对于其他任何你应该使用awk。
答案 1 :(得分:22)
这适用于LF
或CR-LF
行结尾:
sed -E ':a;N;$!ba;s/\r{0,1}\n/\\n/g' file
答案 2 :(得分:5)
您可以使用sed
和tr
执行此操作:
sed 's/$/\\n/' file | tr -d '\n'
但是,这会在最后添加额外的\n
。
答案 3 :(得分:2)
您可以使用-z
选项
sed -z 's/\n/\\n/g' file
或
sed -z "s/\n/\\\n/g" file
答案 4 :(得分:0)
这里有一个用于替换&#39; \ r \ n&#39;的小python脚本。用&#39; \ r&#39;在目录中以递归方式 进口口 import sys
if len(sys.argv) < 2:
print("Wrong arguments. Expected path to directory as arg 1.")
exit(1)
path = sys.argv[1]
def RecOpOnDir(path, op) :
for f in os.listdir(path):
full_f = path + "/" + f
if os.path.isdir(full_f):
RecOpOnDir(full_f, op)
else:
try:
op(full_f)
except Exception as ex:
print("Exception during proc '", full_f, "' Exception:", ex)
file_counter = 0
def WinEndingToUnix(path_to_file):
global file_counter
file_counter += 1
file_strs = []
with open(path_to_file) as f:
for line in f:
file_strs.append(line.replace(r"\r\n", r"\n"))
with open(path_to_file, "w") as fw:
fw.writelines(l for l in file_strs)
try:
RecOpOnDir(path, WinEndingToUnix)
print("Completed.", file_counter, "files was reformed")
except Exception as ex:
print("Exception occured: ", ex)
exit(1)
答案 5 :(得分:0)
万一它对任何人都有帮助,我正在寻找这个问题的反面:用换行符替换字符串中的文字'\'n。我设法用sed来解决这个问题:
_s="foo\nbar\n"
echo $_s | sed 's/\\n/\n/g'