Shell Programming and Scripting

Hi
I have to do the following.I have to format a file test.t

The contents are

# Header 1231
xyz
asdf
asdapsdcsd
//string1 = "pqrs"
//string1 = "abcd"; //info
//string1 = "*pqrs"; //add
string1 = "#123"; //sub
//string1 = "#1234567890"
data = check(string1)
//string1 = "#1234567890"
//string2 = "pqrs"
//string2 = "abcd"; //info
//string2 = "*pqrs"; //add
string2 = "#123"; //sub
print "abcd ";
return xy

I want to modify this as


# Header 1231
xyz
asdf
asdapsdcsd
string1 = "#987";
data = check(string1)
string2 = "#21 43 65 87 59";
print "abcd ";
return xy

The requirement is I have to remove all the lines starting with string1 or //string1 or string2 or //string2 and add two new lines
string1 = "#987"; //mult and string2 = "#21 43 65 87 59"; //sub
in its place. How do i do that using a shell script?

"#987 is a default string , but 21 43 65 87 59 is input to the file as
1234567895,ie, if the script is test.sh, i would call that as

./test.sh 1234567895. and i should get this output.

Please help..

Very similar to your other thread - https://www.unix.com/shell-programmin...ted-query.html

Please be aware that you are breaking the rules. Refrain from doing so.

Remove all string1 or string2 pattern as

Code:

sed -e "/^[\/]*string[12]/d" input.txt

hi thanks
I know that it is a similar query. just that could not solve this!
earlier itried to break down the requirements. but any idea how to do that?
how can i call a script by passing some argument and format the same in the script and use it again?

Perhaps something like this

Code:

#! /bin/sh

rev=$(echo $1 | sed -e 's/\(.\)\(.\)/\2\1 /g')

str1='string1 = "#987";'
str2='string2 = "#'$rev';'
 
sed -e "/^[\/]*string[12]/d" -e "s/\(data = .*\)/$str1\n\1\n$str2/g" input.txt

Hi Vino

I am getting error here
Syntax error at line 3: `rev=$' unexpected

Hi Vino

Thanks a lot
Got that