Sed replace in file

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

Linux sed remove string in file

sed -e s/deletethis//g -i *

Source: stackoverflow.com

Bash search and replace text in file

# Basic syntax using awk:
awk '{gsub(regex, substitution_text, $field#); print $0;}' input_file
# Where:
#	- gsub is a function that replaces every regular expression (regex)
#		match with substitution_text. 
#	- $field# is optional but can be used to specify a particular field
#		where gsub should operate. (This is useful if you want to 
#		restrict the substitutions to a specific column)

# Example usage:
awk '{gsub(" ","",$0); print $0;}' input_file
# This replaces every space " " with nothing "", thereby eliminating all
# whitespace from the file

Source: tutorialspoint.com

Similar codes

0 vote101 views1 answer
Bash multiply float
Shell/Bash
0 vote100 views1 answer
How to remove large file from github repo history
Shell/Bash
1 vote62 views1 answer
Error install pyjnius in "chaquopy
Shell/Bash
4 votes103 views2 answers
Missing essential plugin: org.jetbrains.android
Shell/Bash
1 vote119 views1 answer
Show users in sudo group
Shell/Bash
0 vote103 views1 answer
Rm ignore error
Shell/Bash
0 vote89 views1 answer
How to uninstall games on ubuntu
Shell/Bash
21 votes87 views6 answers
Git submodule update
Shell/Bash
1 vote104 views1 answer
Apply gitignore to current commit
Shell/Bash
0 vote102 views1 answer
List inactive services ubuntu
Shell/Bash