Fix bash scripts

chapter2/random_file.bash

@@ -32,7 +32,7 @@ typeset -i MB_SIZE=$1
 typeset -i RN
 typeset -i i=1
 typeset -i X=0
-WORKDIR=/scripts
+WORKDIR=./scripts
 OUTFILE=${WORKDIR}/largefile.random.txt
 >$OUTFILE
 THIS_SCRIPT=$(basename $0)
@@ -42,7 +42,7 @@ CHAR_FILE=${WORKDIR}/char_file.txt
 # DEFINE FUNCTIONS HERE
 ##########################################
 
-build_random_line ()
+function build_random_line
 {
 # This function extracts random characters
 # from the KEYS array by using the RANDOM
@@ -50,7 +50,7 @@ build_random_line ()
 
 C=1
 LINE=
-until (( C > 79 ))
+until [[ C > 79 ]]
 do
    LINE="${LINE}${KEYS[$(($RANDOM % X + 1))]}"
    (( C = C + 1 ))

chapter2/scripts/char_file.txt

@@ -0,0 +1,72 @@
+1
+2
+3
+4
+5
+6
+7
+8
+9
+0
+q
+w
+e
+r
+t
+y
+u
+i
+o
+p
+a
+s
+d
+f
+g
+h
+j
+k
+l
+z
+x
+c
+v
+b
+n
+m
+Q
+W
+E
+R
+T
+Y
+U
+I
+O
+P
+A
+S
+D
+F
+G
+H
+J
+K
+L
+Z
+X
+C
+V
+B
+N
+M
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9