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I think the OP wants to replace for all lines matching KEYWORD but change all ' with " and all " with '. I don't think we can rely in using KEYWORD1 or KEYWORD2 to know which replacement should be made.

terdon
– terdon ♦

2017-01-13 22:52:41 +00:00
Commented Jan 13, 2017 at 22:52
I realized today there is text in front of my keywords. I tried your solutions without the ^ and the top line worked. When I tried the second line without a carat, I got the error sed: can't read FILENAME.txt: No such file or directory. I know the file exists because I used the first command on it, successfully.

Emily Shaffer
– Emily Shaffer

2017-01-16 18:11:59 +00:00
Commented Jan 16, 2017 at 18:11
This is what I wound up using to change my files: sed -i -e "/^KEYWORD_1/ y/\"/'/" \ -i -e "/^KEYWORD_2/ y/'/\"/" \ file

Emily Shaffer
– Emily Shaffer

2017-01-16 19:37:14 +00:00
Commented Jan 16, 2017 at 19:37
@EmilyShaffer Glad it worked. The altenate command is correct. Your error "can't read FILENAME.txt" was probably due to a quoting problem. If you mistakenly remove the leading or ending double quote, or one of the inner escapes (``) you may end up with a similar error.

xhienne
– xhienne

2017-01-16 19:49:48 +00:00
Commented Jan 16, 2017 at 19:49

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create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
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