Menu
I'm trying to find a line in a file and replace the next line with a specific value. I tried sed, but it seems to not like the \n. How else can this be done?
The file looks like this:
<key>ConnectionString</key> <string>anything_could_be_here</string> And I'd like to change it to this
<key>ConnectionString</key> <string>changed_value</string> Here's what I tried:
sed -i '' "s/<key>ConnectionString<\/key>\n<string><\/string>/<key>ConnectionString<\/key>\n<string>replaced_text<\/string>/g" /path/to/file 
940
`sed` command is one of the ways to do replacement task. This command can be used to replace text in a string or a file by using a different pattern.
Find and replace text within a file using sed command Use Stream EDitor (sed) as follows: sed -i 's/old-text/new-text/g' input.txt. The s is the substitute command of sed for find and replace. It tells sed to find all occurrences of 'old-text' and replace with 'new-text' in a file named input.txt.
Using the grep Command. If we use the option '-A1', grep will output the matched line and the line after it.
One way: Sample file
$ cat file Cygwin Unix Linux Solaris AIX Using sed, replacing the next line after the pattern 'Unix' with 'hi':
$ sed '/Unix/{n;s/.*/hi/}' file Cygwin Unix hi Solaris AIX For your specific question:
$ sed '/<key>ConnectionString<\/key>/{n;s/<string>.*<\/string>/<string>NEW STRING<\/string>/}' your_file <key>ConnectionString</key> <string>NEW STRING</string> This might work for you (GNU sed):
sed '/<key>ConnectionString<\/key>/!b;n;c<string>changed_value</string>' file !b negates the previous address (regexp) and breaks out of any processing, ending the sed commands, n prints the current line and then reads the next into the pattern space, c changes the current line to the string following the command.
29
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
