bash file read and work

bash file read and loop work example)

input file : t1

workjob : echo file line,  wc -l : line count

	#!/bin/bash
	k=1
	input="t1"
	while IFS= read -r var
	do
	echo "$k ]"
	echo "$var"
	cat "$var"
	wc -l "$var"
	echo "------------------------------------------------------"
	(( k = k + 1 ))
	done < "$input"
	# ---------------------------
	#!/bin/bash
	k=1
	n_stt=200
	n_end=250
	input="f_list.txt"
	rm test-files.txt train-files.txt
	while IFS= read -r var
	do
	if (( k > n_stt && k <= n_end )); then
	echo "$k is test"
	echo $var >> test-files.txt
	else
	echo "$k is train"
	echo $var >> train-files.txt
	fi
	(( k = k + 1 ))
	done < "$input"
	# file remove that it has not current dir
	#
	#!/bin/bash
	files=`ls *.jpg | cut -c 1,-24 | awk '{print "../seg-caries/" $1 "_all.png" }'`
	for f in $files
	do
	if [ ! -f "$f" ]; then
	del_f=`echo $f | cut -c 15-38 | awk '{print "./" $1 ".jpg"}'`
	rm -f $del_f
	echo "del $del_f"
	fi
	done

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