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rodrigobdz/replace_line.sh

Last active January 28, 2018 20:45
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Replace line in text file
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replace_line.sh
#!/bin/bash
# Copyright (C) 2017 Rodrigo Bermudez Schettino
# Script to replace a line in a text file
# Create file with sample text
echo "this will be replaced" > file.txt
############
# file.txt #
############
# this will be replaced
LINE_NUMBER=1
CONTENT="foo"
# It takes as an argument the line to replace and the content
# to insert as a replacement
sed -i "${LINE_NUMBER}c\\${CONTENT}" file.txt
############
# file.txt #
############
# foo
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rodrigobdz commented Jan 28, 2018 •
edited

Replace line in text file

Example on how to replace a specific line in a file by number.

Usage

# Make script executable
$ chmod +x replace_line.sh
# Run script
$ ./replace_line.sh

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