Unix 2

1
Unix 2 Makefiles

• ????? ???? ???

2
Agenda

• More about awk
• loops
• argc argv
• Makefile

3
awk

• ???? ???? shir.txt
• there between sand and
• pure piece of peace
• was found Sleep honey
• sleep sleep little girl

4
awk

• ???? ???? shir.txt
• there between sand and
• pure piece of peace
• was found Sleep honey
• sleep sleep little girl

5
awk

• awk print NR shir.txt
• 1
• 2
• 3
• 4

6
awk

• awk print NF shir.txt
• 4
• 4
• 4
• 4

7
awk

• awk print NF "--" 2 shir.txt
• 4--between
• 4--piece
• 4--found
• 4--sleep

8
awk

• line2
• awk lnlineprint ln shir.txt
• between
• piece
• found
• sleep

9
loops

• while count -gt 0
• do print "\count is count"
• (( count - 1 ))
• done

10
Argc argv

• include ltiostreamgt
• using namespace std
• int main(int argc, char argv)
• for (int i 1 iltargc i)
• cout ltlti ltlt" " ltltargvi ltltendl
• return 1

11
Argc argv

• Stam.exe a ab abc
• 1 a
• 2 ab
• 3 abc

12
Makefile

• ?????
• A comment
• hello.exe hello.cpp
• cl hello.cpp

13
Makefile

• ?????
• CPP cl
• hello.exe hello.cpp
• (CPP) hello.cpp

14
Makefile

• ?????
• CPP cl
• .SUFFIXES .exe .cpp
• .cpp.exe
• (CPP) lt

15
Makefile

• ?????
• CPP mycompiler
• .SUFFIXES .exe .cpp
• .cpp.exe
• (CPP) lt
• target1.exe