/home/temp.txt
http://url_new_address.com
/home/list.txt
URL http://url_address.com:URL1
URL http://url_address.com:URL2
URL http://url_address.com:URL3
How can I replace the line in temp.txt with URL2 in list.txt with shell script ?
after command
/home/list.txt
URL http://url_address.com:URL1
URL http://url_new_address.com:URL2
URL http://url_address.com:URL3
Thanks to don_crissti's suggestion and Stéphane Chazelas solution I have come up with the following:
#!/bin/sh
lhs=':URL2'
rhs="URL $(cat temp.txt):URL2"
escaped_lhs=$(printf '%s\n' "$lhs" | sed 's:[][\/.^$*]:\\&:g')
escaped_rhs=$(printf '%s\n' "$rhs" | sed 's:[\/&]:\\&:g;$!s/$/\\/')
sed "s/.*$escaped_lhs/$escaped_rhs/" list.txt
This will find any line containing ending in :URL2 and replace it with:
URL http://url_new_address.com:URL2
