Question

1) Copy bother10.sh from /home/ghoffman/course_files/it244_files to your hw6 directory.
Run this program in the background redirecting output to /dev/null.
Be sure you copy and run bother10.sh, NOT bother.sh.

2) Run a command that shows the job number of the process running bother10.sh.

3) Run a command that shows the process ID of the process running bother10.sh.

4) Copy the script make_foo.sh from ~ghoffman/course_files/it244_files to your current directory.
Run this script.
Using touch, create the file foo.txt.
Perform a long listing of all files whose name starts with the string "foo" using meta-characters.

5) Using meta-characters, perform a long listing of all files whose name starts with the string "foo", followed by a single character, followed by .txt .

6) Using meta-characters, perform a long listing of all files whose name starts with the string "foo", followed by a single digit, either 1, 3 or 5, followed by .txt .

7) Using meta-characters, perform a long listing of all files whose name starts with the string "foo", followed by a single digit from 1 through 5 followed by .txt . Do this using the range feature of one of the meta-characters.

8) Using meta-characters, perform a long listing of all files whose name starts with the string "foo" followed by a single digit, not 1, nor 3 nor 5, followed by .txt .

9) Using meta-characters, perform a long listing of all files whose name starts with the string "foo" followed by two digits followed by .txt .

10) Using meta-characters, perform a long listing of the files foo21.txt, foo25.txt and foo29.txt. This must be done using a single command.

Answer 1

Hi,Let me know if you need more information/implementation:-

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Take this code to hw6.sh/<ur choice>

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ss139t@chinnasrinu-VirtualBox:~$ cat hw6.sh
#/bin/bash

echo "START"
echo "STEP1"
cp /home/ghoffman/course_files/it244_files/bother10.sh hw6/ >> /dev/null &

echo "STEP2"
echo $!

echo "STEP3"
jobs -l | awk -F" " '$0 =~ /bother10.sh/ { print $2; }'

echo "STEP4"
cp ~ghoffman/course_files/it244_files/make_foo.sh .

echo "STEP5"
chmod 755 make_foo.sh
./make_foo.sh

echo "STEP6"
touch foo.txt

echo "STEP7"
ls -lt foo*

echo "STEP8"
ls -lt foo[a-z].txt

echo "STEP9"
ls -lt foo[135].txt

echo "STEP10"
ls -lt foo[1-5].txt

echo "STEP11"
ls -lt foo[0246-9].txt

echo "STEP12"
ls -lt foo[0-9]?.txt

echo "STEP13"
ls -lt foo21.txt foo25.txt foo29.txt

echo "DONE"

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STEP8 -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:07 fooA.txt -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:05 foob.txt -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:05 fooa.txt STEP -rwxr-xr-x 1 ss139t Ss139t 0 Jul 11 12:09 foo3.txt ーrwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:08 fool.txt STEP10 -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:09 foo3.txt -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:08 fool.txt STEP11 -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:18 foo9.txt STEP12 -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:12 foo2 9 . txt ーrwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:11 foo25.txt -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12 11 foo21.txt STEP13 -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:12 foo29.txt ーrwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:11 foo25.txt -rwxr-xr-x 1 ss139t ss139t 0 Jul 11 12:11 foo21.txt DONE

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Please Comment if required.

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Thanks