I have a very lengthy string (length is also not fixed) I want to extract a substring lying between 'email' and '@gmail.com'
Suppose it is
xhxjcndjcnkjcnd cjkjcdckjncx email:[email protected] djc
I want to extract the 'substring' in the String.. Can I do this using regular expression , using sed tool.?
perl -lne 'print $1 if(/email:(.*?)\@gmail.com/)'
Tested below:
> echo "xhxjcndjcnkjcnd cjkjcdckjncx email:[email protected] djc" | perl -lne 'print $1 if(/email:(.*?)\@gmail.com/)'
substring
>
VALUE="xhxjcndjcnkjcnd cjkjcdckjncx email:[email protected] djc"
echo $VALUE | awk -F":" '{print $2}' |cut -d@ -f1
sed just do the same as awk, so why not two awk like this awk -F: '{print $2}' | awk -F@ '{print $1}' or two sed?Another awk
awk -F":" '{split($2,a,"@");print a[1]}' file
substring
It you have many lines to search for gmail addresses
awk -F":" '/gmail\.com/ {split($2,a,"@");print a[1]}'
substring
Using sed:
INPUT="xhxjcndjcnkjcnd cjkjcdckjncx email:[email protected] djc"
USERNAME=$(sed -n "s/.*\email:\(.*\)@gmail\.com.*/\\1/p" <<< $INPUT)
echo $USERNAME
[email protected] not correctly substring. You should also change backtics to paranthese $(data) Eksample MAIL=$(sed -n "s/.*\email:\(.*@gmail\.com\).*/\\1/p" <<< $INPUT)The shell can handle this:
$ line='xhxjcndjcnkjcnd cjkjcdckjncx email:[email protected] djc'
$ name=${line#*email:} # remove the prefix ending with "email:"
$ name=${name%@gmail.com*} # remove the suffix starting with "@gmail.com"
$ echo $name
substring
I think grep (with positive lookahead and positive lookbehind) is the correct tool for the job:
$ grep -oP '(?<=email:).*?(?=@gmail\.com)'<<< "xhxjcndjcnkjcnd cjkjcdckjncx email:[email protected] djc"
substring
