Git cpp bash

GIT

• Save work progress in a repository
  • For example github.com
• Use branches
  • one for implementing bash script and another for c++
  • commit often,
  • when checking out a random revision, it should compile.
    • for example first commit might be a simple "hello world".
  • finished work should be merged into master

BASH

• awk
• grep
• sed

Script 1

Script has 1 optional argument, path to meminfo file. If it's not provided use "/proc/meminfo"

Use standard unix tools like awk, grep, sed and others

output: RAM: x MB used / y MB total ( z MB free)

Example of /proc/meminfo

cat /proc/meminfo 
MemTotal:        7969612 kB
MemFree:         4582768 kB
Buffers:          707368 kB
Cached:          1122984 kB
SwapCached:            0 kB
Active:          1742408 kB
Inactive:        1203472 kB
Active(anon):    1115268 kB
Inactive(anon):   168692 kB
Active(file):     627140 kB
Inactive(file):  1034780 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:               148 kB
Writeback:             0 kB
AnonPages:       1115604 kB
Mapped:           251420 kB
Shmem:            168440 kB
Slab:             288752 kB
SReclaimable:     256656 kB
SUnreclaim:        32096 kB
KernelStack:        3784 kB
PageTables:        36524 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     3984804 kB
Committed_AS:    3669332 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      563420 kB
VmallocChunk:   34359156568 kB
HardwareCorrupted:     0 kB
AnonHugePages:         0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:       59392 kB
DirectMap2M:     8189952 kB

Script 2

Compiles the C++ application Probably only has 1 useful line, g++ with some linker options.

C++

• boost
  • datetime
  • format
  • filesystem (3)

Application

Program takes one argument: path to directory.

Application must print out the name of directory. List all files in that directory. Each line must be preceded with the current running time of application. At the end, show total run time.

Use boost libraries: format, datetime, filesystem.

Output format:

List of files in '/path/to/directory'
Time: 00:00:00.123456 file: 'filename1'
Time: 00:00:01.123456 file: 'filename1'
Time: 00:00:02.123456 file: 'filename1'
Total running time was: 00:00:10.654321