Bash Simple Tricks (Continuation) - Part 3

This is continuation of my previous articles .. Please don't miss them :-

1. Bash Simple Tricks
2. Bash Simple Tricks (continuation)

Again I am following a question – solution approach to demonstrate my scripts..

Scripts

How to 'cat'(print) all the files in a folder

Solution :-

Code:

#!/bin/bash 

cat `ls` 

ls output :-

Code:

aneesh@aneesh-laptop:~/articles/Bash$ ls 
char2.sh  displayA.sh  endZ.sh  file1  ls.sh  vovelFile.sh 

Running :-

Code:

aneesh@aneesh-laptop:~/articles/Bash$ ./ls.sh 
#!/bin/bash 

cat $1 | grep '..[eE]' | wc -l 
#!/bin/bash 

cat $1 | grep ^[aA] | wc -l 
#!/bin/bash 

cat $1 | grep [z]$ | wc -l 
aaessss 
aaaesss 
aaaaaaaa 
lionaneesh 
ssssssssss 
#!/bin/bash 

cat `ls` 
#!/bin/bash 

ls | grep ^[aeiouAEIOU] | wc -l 

cat(Print) all the .txt files in a folder

Solution :-

Code:

#!/bin/bash 

cat `ls | grep .txt` 

ls output :-

Code:

aneesh@aneesh-laptop:~/articles/Bash$ ls 
char2.sh     endZ.sh  ls.sh     txt2.txt  vovelFile.sh 
displayA.sh  file1    txt1.txt  txt.sh 

Using :-

Code:

aneesh@aneesh-laptop:~/articles/Bash$ sh txt.sh 
WOOOOOOWWWWWW!!! 

Its file no 1 named txt1 
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
Hello !!!!!! Hi Wassup 

This is file no 2 named txt2 

Write a bash script to display todays date and time..

Code:

aneesh@aneesh-laptop:~/articles/Bash$ cat date.sh 

#!/bin/bash

echo "Today is `date`"

Using :-

Code:

aneesh@aneesh-laptop:~/articles/Bash$ chmod +x date.sh 

aneesh@aneesh-laptop:~/articles/Bash$ ./date.sh

Today is Tue Feb 15 22:23:57 IST 2011

Write a bash script to output the date and time in audio format(speak)

Code:

#!/bin/bash

espeak "Today is `date`"

Using :-

Code:

aneesh@aneesh-laptop:~/articles/Bash$ chmod +x date2.sh 

aneesh@aneesh-laptop:~/articles/Bash$ ./date2.sh

Write a bash script to maximize all the windows opened after a specified no of seconds..

Solution :-

Code:

#!/bin/bash

sleep $1

maximus

Using :-

Code:

aneesh@aneesh-laptop:~/articles/Bash$ chmod +x maximise.sh 

aneesh@aneesh-laptop:~/articles/Bash$ ./maximise.sh 2

How to download youtube videos with bash ?

Code:

#!/bin/bash

youtube-dl $1

Using :-

Code:

aneesh@aneesh-laptop:~/articles/Bash$ chmod +x youtube.sh 

aneesh@aneesh-laptop:~/articles/Bash$ ./youtube.sh http://www.youtube.com/watch?v=m8Dd7rjmEW4

 

If you are viewing this article leave a comment whether you like it or not...Or what you want more from the article...Etc..etc...

 

yes i have try the last one and i think that was the best according to me

 

Downloading videos!!
yeah!! Its good!