Sed replace

Linux replace string in all files

sed -i 's/old-text/new-text/g' input.txt

Sed replace in file

sed -i 's/foo/bar/g' hello.txt

Source: cyberciti.biz

Ubuntu command line replace word in files

sed -i 's/original/new/g' file.txt

Source: askubuntu.com

Sed replace all occurances?

echo dog dog dos | sed -e 's:dog:log:g'

#You can also use the above answer with appropriate slashes like
echo "grepper is a nice grepper" | sed "s/grepper/blow/g"

Source: stackoverflow.com

Sed replace with variable

Just concatenate var '"$var"' to replace values string in sed command:
$ sed -i 's/string_to_replace/'"$var"'/g' file_to_replace.txt

Sed replace

For using match in sed replacement, just border it with '\(' and '\)':
echo Before123 | sed 's/Before\([0-9]*\)/\1After/g'
123After	# number is matched withtin '\( \)' and replaced in '\1'
Example with 2 match replacements
echo a_b | sed 's/\(^.*\)_\(.*$\)/first is \1 and \2 is after/g'

Similar codes

0 vote170 views1 answer
Cp directory with exclusion
Shell/Bash
0 vote166 views1 answer
Powershell function resize image
Shell/Bash
5 votes168 views6 answers
How to install webpack
Shell/Bash
2 votes181 views1 answer
Dd usr1
Shell/Bash
24 votes178 views4 answers
How to delete a package in ubuntu
Shell/Bash
0 vote141 views1 answer
Filmora turn off message center
Shell/Bash
5 votes199 views4 answers
Set default terminal ubuntu
Shell/Bash
0 vote157 views1 answer
Git push origin branch rejected
Shell/Bash
1 vote170 views1 answer
Create folder ubuntu and file
Shell/Bash
0 vote173 views1 answer
How to create hotspot in kali linux terminal
Shell/Bash