21. Linuxda xavfsizlik choralari. Ip protokollar. Ip manzil va portlar bilan ishlash

Maxsus belgilar:
a : add
c : change
d : delete
Syntax :
diff [options] File1 File2
Misollar
1) diff buyrug'i bilan ikkita faylni solishtiring
Faraz qilaylik, bizda ikkita aachen.txt va sydney.txt fayli bor va bu fayllarning mazmuni quyidagicha:
[root@linuxtechi ~]# cat aachen.txt
Linux Rocks in the open source world, followings are the linux distributions:
CentOS
Red Hat
Ubuntu Debian
Linux Mint
OpenSUSE
Fedora
[root@linuxtechi ~]# cat sydney.txt
Linux Rocks in the open source world, followings are the linux distributions:
CentOS
Red Hat
Ubuntu Debian
Linux Mint
OpenSUSE
Fedora
[root@linuxtechi ~]#
Keling, diff buyrug'i yordamida ushbu fayllar tarkibini solishtiramiz,
[ root@linuxtechi ~]# diff aachen.txt sydney.txt
[ root@linuxtechi ~]#
Yuqoridagi chiqish ikkala fayl ham bir xil ekanligini tasdiqlaydi. Keling, aachen.txt-ga ba'zi o'zgartirishlar kiritamiz, ochiq manbani “ ochiq manba ” deb qayta yozamiz.
Endi diff buyrug'ini qayta ishga tushiring,
[ root@linuxtechi ~]# diff aachen.txt sydney.txt


3) Diff buyrug'ining yagona formatdagi chiqishi (-u)
Agar siz uning chiqishini birlashtirilgan formatda ishlab chiqarmoqchi bo'lsangiz, diff buyrug'idagi "-u" opsiyasidan foydalaning , misol quyida ko'rsatilgan,
[ root@linuxtechi ~]# farq -u aachen.txt sydney.txt
190. Linuxda tar buyrug’ining ishlatilishiga misollar keltiring.
Linux "tar" tasma arxivi degan ma'noni anglatadi, Arxiv yaratish va Arxiv fayllarini chiqarish uchun ishlatiladi. Linuxda tar buyrug'i Linuxda arxivlash funksiyasini ta'minlovchi muhim buyruqlardan biridir. Biz siqilgan yoki siqilmagan Arxiv fayllarini yaratish, shuningdek ularni saqlash va o'zgartirish uchun Linux tar buyrug'idan foydalanishimiz mumkin.