add 3 lectures for SFedU

Komp_obr_SFedU/Materials4Pract/01/a.c

@@ -0,0 +1,10 @@
+//usr/bin/gcc $0 && exec ./a.out "$@"
+
+#include <stdio.h>
+
+int main(int argc, char **argv){
+  for(int x = 1; x < argc; ++x)
+  printf("arg %d is %s\n", x, argv[x]);
+  printf("Done\n");
+  return 0;
+}

Komp_obr_SFedU/Materials4Pract/01/args

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+function chkargs(){
+	echo "you give $# arguments:"
+	for arg in "$@"; do
+		echo -e "\t$arg"
+	done
+}
+
+chkargs "$@"
+chkargs "$*"
+chkargs $*

Komp_obr_SFedU/Materials4Pract/01/array

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+array=(1 2 3 4 [5]=next [10]=last)
+echo "array with size ${#array[*]} and indexes ${!array[*]}: ${array[*]}"
+echo "array[4]=${array[4]}, array[10] len=${#array[10]}"
+

Komp_obr_SFedU/Materials4Pract/01/awkscript1

@@ -0,0 +1,15 @@
+BEGIN {
+	print "List of users and shells"
+	print " UserName \t HomePath"
+	print "-----------------------"
+	FS=":"
+}
+{
+	print $1 " \t " $6
+}
+END {
+	home=ENVIRON["HOME"]
+	name=ENVIRON["USER"]
+	print "-----------------------"
+	print "Your name is " name " and home is " home
+}

Komp_obr_SFedU/Materials4Pract/01/awkscript2

@@ -0,0 +1,11 @@
+{
+	if ($1 > 20)
+	{
+		x = $1 * 2
+		print x
+	} else
+	{
+		x = $1 / 2
+		print x
+	}
+}

Komp_obr_SFedU/Materials4Pract/01/case

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+while [ -n "$1" ];do
+  case "$1" in
+    -a) echo "Found the -a option" ;;
+    -b) echo "Found the -b option" ;;
+    -c) echo "Found the -c option" ;;
+    *) echo "$1 is not an option" ;;
+  esac
+  shift
+done

Komp_obr_SFedU/Materials4Pract/01/ex1

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+if [ $# -ne 1 ]; then
+	echo "Usage: $0 LEN - get random number with length LEN"
+	exit 1
+fi
+cat /dev/urandom | tr -dc '0-9' | fold -w $1 | head -n 1

Komp_obr_SFedU/Materials4Pract/01/ex2

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+for ((nl = 1; nl < 1001; ++nl)); do
+	one=$((RANDOM % 1001))
+	two=$((RANDOM % 41 - 20))
+	#three=$(echo "scale=3; $((SRANDOM % 100001)) / 1000" | bc -l)
+	R=$((SRANDOM % 100001))
+	three=$(echo "$R" | awk '{printf "%.3f", $1/1000}')
+	echo -e "$nl\t$one\t$two\t$three"
+done

Komp_obr_SFedU/Materials4Pract/01/ex3

@@ -0,0 +1,8 @@
+#!/bin/sh
+OUT=1000strings
+
+./ex2 1000 > $OUT
+for ((i = 2; i < 5; ++i)); do
+	sort -n -k $i $OUT > ${OUT}_$i
+done
+

Komp_obr_SFedU/Materials4Pract/01/ex4

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+if [ $# -ne 1 ]; then echo "Usage: $0 word"; exit 1; fi
+
+TOTAL=0
+miss=0; hit=0;
+
+while true; do
+	TOTAL=$((TOTAL+1))
+	ans=$(cat /dev/urandom | tr -dc 'a-zA-Z' | fold -w 100 | head -n1 | grep $1)
+	if [ -x$ans = -x ]; then
+		miss=$((miss+1))
+	else
+		echo "$ans"
+		hit=$((hit+1))
+	fi
+	[ $hit -ge 5 -o $TOTAL -ge 10000 ] && break
+done
+
+part=$(echo "$hit $TOTAL" | awk '{ printf "%.2f", $1*100/$2}')
+
+echo "Miss: $miss, Hit: $hit (${part}%)"

Komp_obr_SFedU/Materials4Pract/01/for

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+echo -e "\t1."
+
+for (( a = 1; a < 11; ++a )); do
+	echo "a=$a"
+done
+
+echo -e "\n\t2."
+
+for a in $(seq 1 10); do
+	echo "a=$a"
+done
+
+echo -e "\n\t3."
+
+for a in one "two args" three; do
+	echo "a=$a"
+done

Komp_obr_SFedU/Materials4Pract/01/if

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+echo "Enter value"
+read val
+if [ $val -gt 100 ]; then
+	echo "value $val greater than 100";
+else
+	echo "value $val less than 100";
+fi
+
+echo "Enter filename"
+read f
+[ -d $f ] && echo "$f is a directory"
+[ -f $f ] && echo "$f is a file"
+[ ! -e $f ] && echo "Not exists"

Komp_obr_SFedU/Materials4Pract/01/takeexp

@@ -0,0 +1,43 @@
+#!/bin/bash
+# array with filter positions (0 - hole, 1 - B, 2 - V, 3 - R, 4 - r')
+POSITIONS=( 1 2 3 )
+# array with expositions (in milliseconds!!!) for each position from POSITIONS
+EXPTIME=( 600000 300000 400000 )
+# array with focus (mm*10000) for each position
+FOCUS=( 45000 45500 45300 )
+
+# array size
+len=${#POSITIONS[*]}
+
+__x=0
+function chkweather(){
+  local y=$__x
+  __x=$((__x+1))
+  return $y
+}
+
+function move_focuser(){
+  echo "move focuser to $1"
+}
+
+function move_turret(){
+  echo "move turret to $1"
+}
+
+function capture_frame(){
+  echo "capture frame with exposition $1 to file prefix $2"
+}
+
+function take_image(){
+  for (( i=0; i<$len; i++ )); do
+    move_focuser ${FOCUS[i]}
+    move_turret ${POSITIONS[i]}
+    capture_frame ${EXPTIME[i]} filename
+  done
+}
+
+while chkweather; do
+  take_image
+done
+
+echo "stop_observations"

Komp_obr_SFedU/Materials4Pract/01/while

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+while read X; do
+	echo "You entered: $X"
+done
+
+echo "End"