Sathish Krishnan Venkatachalam

• Aug 7th, 2020

Grep "^$" file.txt

mallikarjuna reddy

• Jul 23rd, 2019

Grep -n ^$ file1.txt this command will give the all empty lines numbers display
grep -n ^$ file1.txt | wc -l this command will give the all empty lines number counts in file

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Write a small shell script that adds an extension ".new" to all the files in a directory.

Nawaz

• Jun 9th, 2017

For f in *; do mv $f ${f}.new; done

Nawaz

• Oct 25th, 2016

For item in `ls`; do mv $item ${item}.new; done

Code
 

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Nasirjamal MohdSiraj

• May 25th, 2017

Head -2 test | tail -1

Tarun Thakur

• Mar 28th, 2017

Sed -n 2p filename

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Ravindar

• Jan 2nd, 2017

Vi -R filename
This will open the file in read mode in vi editor(which is available in almost all unix version)

Akula Uday

• Nov 24th, 2016

View filename

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Editorial / Best Answer

Answered by: Suman Saha

• Jun 27th, 2005

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cat filename.txt | cut -c 10-20

Anil Kumar

• Feb 3rd, 2016

Cut -c 10-20 filename

Bharat

• Sep 21st, 2015

Cat 1.txt | cut -c 10-20.

The question is about the character positions and not the lines from 10 to 20

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write a shell script that accept 7 numbers in loop,then make a sum of this numbers. then count the numbers that are greater than 250 ?

satish

• Jul 10th, 2013

"perl total=0 for a in 1 ...

ardiansyah

• Jul 5th, 2012

Code
#!/bin/bash
"Write a number : ""c=c+1"
        fi
        let "total = i + total""total = $total"
echo " > 250 = $c "

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What are the different types of shells available in UNIX?

nitin

• Mar 3rd, 2013

There is a lot of shell available in UNIX.
Ex:- Bourne shell, Bash shell, CShell, Korn shell etc.

santarvedi

• Oct 30th, 2012

$cat /etc/shells

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Mo

• Apr 20th, 2012

Positional parameters are reads either by displaying there value or can be assigned to another variables.

echo $1 $2 $9 ${10} ${20}
shift operators can be used to move around the positional parameters.

example: test.sh 1 2 3 4 5

a=$1

while [ -z "$a" ]
do

echo $a
shift

done

rks03075

 Profile Answers by rks03075 Questions by rks03075

• Jun 4th, 2010

Echo $1echo $2

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