Newsgroups:  comp.unix.shell
Date:        Thu, 16 Jun 2005 23:04:04 +0200

In a file, I want to replace first line which begins with "string1" to the next line which begins with "string2" by just a line with follwing text "TEXT DELETED".

For example, test_file.c :

line 1:  ..........................
line 2:  ..........................
line 3:  string0...................
line 4:  string1................... <----------------------
line 5:  .......................... <----------------------
line 6:  .......................... <----------------------
line 7:  string2................... <----------------------
line 8:  string3...................
line 9:  string4...................

After having to launch shell-script, the file becomes :

line 1:  ..........................
line 2:  ..........................
line 3:  string0...................
line 4:  TEXT DELETED               <----------------------
line 5:  string3...................
line 6:  string4...................

Somebody would know how to make with a shell-script ?

perl -i.bak -lne'
$a=/^string1/.../^string2/,$a eq 0+$a?next:s/^string2/TEXT DELETED/,print
' test_file.c

awk '/string1/{print "TEXT DELETED"}/string1/,/string2/{next}1' file

sed '/string1/,/string2/c\
TEXT DELETED' file > newfile

$ jot 9 | sed -e '/4/,/7/c\' -e 'TEXT DELETED'
1
2
3
TEXT DELETED
8
9