SmirnovIgor/Shell hometask

.gitignore

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+# Created by https://www.gitignore.io
+
+### OSX ###
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear on external disk
+.Spotlight-V100
+.Trashes
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.cache
+nosetests.xml
+coverage.xml
+
+# Translations
+*.mo
+*.pot
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Vagrant
+.vagrant
+

Igor_Smirnov/part1.sh

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+#!/bin/bash
+
+#1 Download using shell
+wget http://www.sec.gov/dera/data/Public-EDGAR-log-file-data/2017/Qtr2/log20170630.zip
+
+#2 Unpack the log file
+unzip log20170630.zip
+
+if [[ ! -d ./log20170630 ]]
+then
+    mkdir log20170630
+fi
+
+mv log20170630.csv ./log20170630/log20170630.csv
+
+
+#3 Change owner of log file to your current user using chown
+chown $USER:$USER log20170630.csv
+
+#4 Change executive bit to a random.sh script using chmod
+chmod +x random-picker.sh
+
+#5 Execute the random-picker.sh script
+./random-picker.sh
+
+#6 Find the file using find
+find / -name log20170630.csv 2> /dev/null
+
+#7 Try to look for errors using your favorite editor
+vim /usr/src/linux-raspi2-headers-5.3.0-1014/drivers/staging/greybus/tools/log20170630.csv
+
+#8 Try to find errors using grep ------> error.csv
+cat /usr/src/linux-raspi2-headers-5.3.0-1014/drivers/staging/greybus/tools/log20170630.csv | grep error > error.csv
+
+#9 Tail last 500 lines of file ------> tail500.csv
+tail -n 500 /usr/src/linux-raspi2-headers-5.3.0-1014/drivers/staging/greybus/tools/log20170630.csv > tail500.csv
+
+#10 Find how many index.htm hits were at 30.06.2017 14:00  ------> 10416
+cat /usr/src/linux-raspi2-headers-5.3.0-1014/drivers/staging/greybus/tools/log20170630.csv | grep "2017-06-30,14:00:[0-5][0-9]" | grep "index.htm" | wc -l
+
+#11 Find how many index.htm hits were at 30.06.2017 17:00-18:00 ------>  409996
+cat /usr/src/linux-raspi2-headers-5.3.0-1014/drivers/staging/greybus/tools/log20170630.csv | grep "2017-06-30,1[7]:[0-5][0-9]:[0-5][0-9]" | grep "index.htm" | wc -l
+
+#13 Show the number of times each IP shows up in the log – using sort and uniq utilities ------> ip_count.csv
+cut -d, -f1 /usr/src/linux-raspi2-headers-5.3.0-1014/drivers/staging/greybus/tools/log20170630.csv | sort | uniq -ic > ip_count.csv
+
+#14 Count all 13.94.212.jdf IP hits us ------> 87313
+cat ip_count.csv | grep 13.94.212.jdf | grep -Eo '^[^ ]+'

Igor_Smirnov/part2.sh

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+#!bin/bash
+
+#1 add ubuntu user to adm and root groups using sed
+sed -i 's/^root.*/&ubuntu/g' /etc/group
+sed -i 's/^adm.*/&,ubuntu/g' /etc/group
+
+#2 Change timezone to Europe/Berlin in /etc/timezone using sed
+sed -i 's/Minsk/Berlin' /etc/timezone
+
+#3 Change timezone to Europe/Minsk using bash shell utilites and apply it using system commands
+timedatectl set-timezone Europe/Minsk

Igor_Smirnov/part3.sh

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+#!/bin/bash
+
+
+#1 Examine ls using strace command
+apt-get install strace
+strace ls ./
+
+#2 Assess how Linux executes the ./random_picker.sh script
+touch ./log20170630/log20170630.csv
+strace ./random_picker.sh
+
+#3 Count number of 'mv' commands paths using pipes and grep for strace ./random_picker.sh
+strace ./random_picker.sh 2>&1 | grep mv | wc -l
+

Igor_Smirnov/random_picker.sh

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+#!/bin/bash
+mv ./log20170630/log20170630.csv `find /usr -type d | shuf -n 1`
+
+
+