Sed replace with variable

Replace text with sed

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

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

Replace using sed

#on my mac
sed -i -e 's/old-text/new-text/g' text.txt

Sed replace with variable

sed -i "s/$var1/ZZ/g" "$file"

Source: askubuntu.com

Sed replace with variable

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

1 vote131 views1 answer
Lollypop music player install ubuntu
Shell/Bash
-1 vote480 views1 answer
Unmet dependencies.
Shell/Bash
13 votes117 views1 answer
Git list user and email
Shell/Bash
0 vote131 views1 answer
DRIVE LINUX
Shell/Bash
0 vote143 views1 answer
Imapgrab nodename nor servname provided, or not known
Shell/Bash
3 votes123 views1 answer
Remove systemd service
Shell/Bash
1 vote114 views1 answer
Nginx E: Sub-process /usr/bin/dpkg returned an error code (1)
Shell/Bash
0 vote137 views1 answer
Docker splunk
Shell/Bash
0 vote127 views1 answer
Cpanel reset user home permissions
Shell/Bash
2 votes129 views1 answer
Git show currnet branch
Shell/Bash