Tutorial Simple Bash Scripting Tricks #1

[PHC-TheGlock]

Hello, I'm kinda bored also no one about bash scripting here. so yeah. Lets Start...​

How to get rid of all Tabs/or all unwanted space on a string?​

---

Input File:
foo.txt

          foo
    foo

Run:

 sed -i 's|[[:blank:]]||g' foo.txt

Explanation:
^ stands for matching position just before the first character of the string which is basically a Regular Expression (Regex)
[[:blank:]] is basicaly a Bracket expression that aim for blank spaces and tab
"s|" & "|g" purpose of these two is to search for words or expressions (regex) and replace it...
ex. 's|oldword|newword|g'... in this case we want to delete all blanks so i leave it blank to delete it.
-i is to edit files in place..

Output:

 foo
 foo

How to get the content on a specific line in file​

---

Input File:
bar.txt

1 Lmao
2 Lol
3 Foo
4 Bar
5 Alex
6 Steve
7 Juan
8 Erick

Run:

sed -n '4'p bar.txt

Explanation:
-n stands for automatic supress printing of pattern space
'<line number>' this is where you put the line number
p is to print the specific line you put.

Alternative Method:
Using AWK:

awk 'NR== 4' bar.txt

Explanation:
NR refers to the total record number, This is the number of input records (based on AWK's Man)
== is comparison operator which is commonly used in Conditions like (If, While, For, etc.)
4 yep its so obvious right?..

Output:

Bar

So that's pretty much it, also i will create more threads about bash scripting.. Mag request lang kayo kung ano gusto nyo, kahit medyo complex payan OK lng.

Hope it helps :>

- PHC-TheGlock

 

[k4m0t3QT]

ito yung gusto kong thread pabookmarked ulit boss

 

[PHC-TheGlock]

ito yung gusto kong thread pabookmarked ulit boss

Oo nga e.. mukang di masyado patok Bash Scripting dito sa PHC.
Baka Gumawa din ako ng Script katulad ng kay bonchan but Mas maraming Features.
HAHAHAHA

 

[k4m0t3QT]

Oo nga e.. mukang di masyado patok Bash Scripting dito sa PHC.
HAHAHAHA

sa ibang bagay kase sila naka focus hehehe, yung mga mahihilig lang talaga sa ganito o may interest ang makakapansin nito food for my brain na rin to kase for me hahaha, kagaya noong isa mong thread salamat ulit maya ko basahin

 

[PHC-TheGlock]

sa ibang bagay kase sila naka focus hehehe, yung mga mahihilig lang talaga sa ganito o may interest ang makakapansin nito food for my brain na rin to kase for me hahaha, kagaya noong isa mong thread salamat ulit maya ko basahin

Aight, Thanks.
Di na din kasi masyado active si BonChan dito... láρág din ako ng mga knowledge ko dito sa PHC para kahit papaano may ambag

 

[PHC-MrBeast]

salamat boss. antayin ko script mo na maraming features

 

[k4m0t3QT]

Aight, Thanks.
Di na din kasi masyado active si BonChan dito... láρág din ako ng mga knowledge ko dito sa PHC para kahit papaano may ambag

wala na bihira na lang din sumilip dito yun

 

[PHC-TheGlock]

wala na bihira na lang din sumilip dito yun

Oo nga e.. baka medyo busy na

 

[HAREKEN-XRIT]

thanks for sharing paps