Shell script to display all the files which start from a specific letter? For e.g., if letter = s then all files started with letter s should be displayed from the current directory.

# letter.sh

# Program :         To display all the files which start from a specific letter? For e.g., if letter = s then all files started with letter s should be displayed from the current directory. 

# Author :           sujith

# Date :              17/03/2015

echo "Enter the letter"

read letter

flag=0

len=$(echo "$letter" | wc -c)

if [ $len -eq 2 ]

then

        echo "The names of files starting with $len"

        for str in `ls`

        do

                c=$(echo "$str" | cut -c1)

                if [ $c == $letter ]

                then

                        if [ -f $str ]

                        then

                                flag=1

                                echo $str

                        fi

                fi

        done

        if [ $flag -eq 0 ]

        then

                echo "No files which start with the letter $letter"

        fi

else

        echo "Enter only one letter"

fi

Output:

[141740@localhost ~]$ sh letter.sh

Enter the letter

s

The names of files starting with 2

salary.c

sample

sample.c

samplex.c

search.sh

she116.sh

shel16.sh

shell10.sh

shell11.sh

shell12.sh

shell13.sh

shell1.sh

shell2.sh

shell3.sh

shell4.sh

shell5.sh

shell6.sh

shell7.sh

shell8.sh

shell9.sh

sin.c

sinloop.c

sqaure1.c

sqaure.c

square1.c

square.c

stack.cpp

std.c

strcmp.c

strconcat.c

string.l

strlen.c

strpal.sh

str.sh

structure.cpp

sum.c

[141740@localhost ~]$

[141740@localhost ~]$ sh letter.sh

Enter the letter

z

The names of files starting with 2

No files which start with the letter z

[141740@localhost ~]$