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I have two different files:
/home/user1/
/home/user2/bin
/home/user1/a/b/c
<TEXT1>
<TEXT2>
I want to replace the <TEXT1> of File2 with the contents of File1 using sed. I tried this command, but not getting proper output:
cat File2|sed "s/<TEXT1>/$(cat File1|sed 's/\//\\\//g'|sed 's/$/\\n/g'|tr -d "\n")/g"
You can use other tools also to solve this problem.
Here's a sed script solution (easier on the eyes than trying to get it into one line on the command line):
/<TEXT1>/ {
r File1
d
}
Running it:
$ sed -f script.sed File2
/home/user1/
/home/user2/bin
/home/user1/a/b/c
<TEXT2>
sed '/<TEXT1>/{rFile1^Md^M}' File2, where "^M" is you pressing return. The problem is that sed really needs the newlines within the {...} to delimit the r and the d command.
sed $'/<TEXT1>/ {r File1\n d}'
Sep 8, 2011 at 17:18
<TEXT1>, I just want to replace the string itself, leaving the rest of the line intact? Text1: <TEXT1> to Text1: <file_contents>.
May 10, 2014 at 17:13
Took me a long time to find this solution using var replacement. All sed solutions did not work for me, as they either delete complete lines or replace incorrectly.
FILE2=$(<file2)
FILE1=$(<file1)
echo "${FILE2//TEXT1/$FILE1}"
Replaces all occurences of TEXT1 in file2 against content of file1. All other text remains untouched.
sed too, since those "expansions" (aka replacements) are built into the shell (bash at least)
Nov 25, 2019 at 21:17
I answer because the diff/patch method might be of interest in some cases.
To define a substitution of lines contained in file blob1 by lines contained in blob2 use:
diff -u blob1 blob2 > patch-file
For example, if blob1 contains:
hello
you
and blob2 contains:
be
welcome
here
the generated patch-file will be:
--- blob1 2011-09-08 16:42:24.000000000 +0200
+++ blob2 2011-09-08 16:50:48.000000000 +0200
@@ -1,2 +1,3 @@
-hello
-you
+be
+welcome
+here
Now, you can apply this patch to any other file:
patch somefile patch-file
It will replace hello,you lines by be,welcome,here lines in somefile.
sedimplementation are you using. You code works for me with GNUsed./home/user1/ n/home/user2/bin n/home/user1/a/b/cn <TEXT2>. Not getting new lines.diffandpatchtools allow to replace some lines in a file by other lines quite easily.$()in a sed script makes my eyes bleed. Never use external data in places where some characters are interpreted with special meaning.