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Lab3/script3.sh

+#!/bin/bash
+
+if [ "$2" == "-lines" ]
+then
+{
+  lines=$(( $(grep -c ^ $1) ))
+  echo "$lines lines"
+}
+elif [ "$2" == "-words" ]
+then
+{
+  grep -E -o  '\b\w+\b' $1 > output
+  awk '/$/!p {count++}END{if(count!=0){print count,"words"}else{print "0 words";}}' output
+  rm output
+}
+elif [ "$2" == "-chars" ]
+then
+{
+  grep -E -o '(\S)' $1 > charac
+    awk '/$/!p {count++}END{if(count!=0){print count,"characters"}else{print "0 characters";}}' charac
+    rm charac
+}
+elif [ "$2" == "-paras" ]
+then
+{
+  #sed -n '/^$/N;/^\n$/D' $1
+  #awk '{if(!$0)count++}END{if(count!=0){print count,"paragraphs"}else{print "0 paragraphs";}}' $1
+  sed -e :a -e '/./,$!d;/^\n*$/{$d;N;};/\n$/ba' $1 > file1
+  grep -cvP '\S' file1  > z
+  line1=$(head -n 1 z)
+  r=$(($line1+1))
+  echo "$(( $r-3 ))"
+  rm z
+  rm file1
+}
+else
+{
+  grep -E -o '\S' $1 > charac
+  awk 'BEGIN {ORS=" "}/$/!p {count++}END{if(count!=0){print count,"characters,"}else{print "0 characters,";}}' charac
+  rm charac
+  grep -E -o  '\b\w+\b' $1 > output
+  awk 'BEGIN {ORS=" "}/$/!p {count++}END{if(count!=0){print count,"words,"}else{print "0 words,";}}' output
+  rm output
+  lines=$(( $(grep -c ^ $1) ))
+  echo -n "$lines lines, "
+  #sed -n '/^$/N;/^\n$/D' $1
+  sed -e :a -e '/./,$!d;/^\n*$/{$d;N;};/\n$/ba' $1 > file1
+  grep -cvP '\S' file1  > z
+  line1=$(head -n 1 z)
+  r=$(($line1+1))
+  echo "$(( $r-3 )) paragraphs"
+  rm z;rm file1
+  #awk '{if(!$0)count++}END{if(count!=0){print count,"paragraphs"}else{print"0 paragraphs";}}' $1
+}
+fi
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