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#527210
german@mafalda:~/extra/VideoClips$ cat -n fichero
1 bin
2 boot
3 cdrom
4 dev
5 etc
6 home
7 initrd
8 initrd.img
9 lib
10 lost+found
11 media
12 mnt
13 opt
14 proc
15 root
16 sbin
17 selinux
18 srv
19 sys
20 tmp
21 usr
22 var
23 vmlinuz
german@mafalda:~/extra/VideoClips$ sed -i '10d' fichero
german@mafalda:~/extra/VideoClips$ cat -n fichero
1 bin
2 boot
3 cdrom
4 dev
5 etc
6 home
7 initrd
8 initrd.img
9 lib
10 media
11 mnt
12 opt
13 proc
14 root
15 sbin
16 selinux
17 srv
18 sys
19 tmp
20 usr
21 var
22 vmlinuzgerman@mafalda:~/extra/VideoClips$ cat -n fichero
1 bin
2 boot
3 cdrom
4 dev
5 etc
6 home
7 initrd
8 initrd.img
9 lib
10 lost+found
11 media
12 mnt
13 opt
14 proc
15 root
16 sbin
17 selinux
18 srv
19 sys
20 tmp
21 usr
22 var
23 vmlinuz
german@mafalda:~/extra/VideoClips$ sed -i '10d' fichero
german@mafalda:~/extra/VideoClips$ cat -n fichero
1 bin
2 boot
3 cdrom
4 dev
5 etc
6 home
7 initrd
8 initrd.img
9 lib
10 media
11 mnt
12 opt
13 proc
14 root
15 sbin
16 selinux
17 srv
18 sys
19 tmp
20 usr
21 var
22 vmlinuz
german@mafalda:~/extra/VideoClips$ cat -n fichero
1 bin
2 boot
3 cdrom
4 dev
5 etc
6 home
7 initrd
8 initrd.img
9 lib
10 media
11 mnt
12 opt
13 proc
14 root
15 sbin
16 selinux
17 srv
18 sys
19 tmp
20 usr
21 var
22 vmlinuz
german@mafalda:~/extra/VideoClips$ cat -n fichero | sed '/mnt/,/sys/d'
1 bin
2 boot
3 cdrom
4 dev
5 etc
6 home
7 initrd
8 initrd.img
9 lib
10 media
19 tmp
20 usr
21 var
22 vmlinuz