Assuming that the file this code is in has the executable attribute, the system will use /bin/bash to execute it.
Code:
echo "Enter file name"
read file
Reads the file name into variable 'file'
Code:
echo "Enter the number"
read n
Reads the number of lines over which the awk script will find the max.
Code:
awk -v count=$n '{k = $1; getline; for (j=1; j<cunt; j++) {if ( $1 > k ) k = $1; getline; } print k}' $file
This is the awk command to do the work.
Code:
-v count=$n
Sets the awk variable count to the number of lines to use for the comparison.
Code:
'{k = $1; getline; for (j=1; j<cunt; j++) {if ( $1 > k ) k = $1; getline; } print k}'
This is the awk program. It says:
For everyline
set k to the first value of the current input line
---------- Post updated at 10:58 PM ---------- Previous update was at 10:48 PM ----------
Code:
#!/bin/bash
Assuming that the file this code is in has the executable attribute, the system will use /bin/bash to execute it.
Code:
echo "Enter file name"
read file
Reads the file name into variable 'file'
Code:
echo "Enter the number"
read n
Reads the number of lines over which the awk script will find the max.
Code:
awk -v count=$n '{k = $1; getline; for (j=1; j<count; j++) {if ( $1 > k ) k = $1; getline; } print k}' $file
This is the awk command to do the work.
Code:
-v count=$n
Sets the awk variable count to the number of lines to use for the comparison.
Code:
'{k = $1; getline; for (j=1; j<count; j++) {if ( $1 > k ) k = $1; getline; } print k}'
This is the awk program. It says:
Code:
For every line
set k to the first value of the current input line
Get the next input line
For j starting at 1, until j = count do the following
If the new value is greater than k, set k to the new higher value
get the next line
End For j loop
Print the high value for the set of lines
End For every line loop
hi,
I am a begginer in unix and i want to know how to open a file and read it and separate the numbers & words and storing it in separate files, Using shell scripting.
Please help me out for this.
Regards
S.Kamakshi (2 Replies)
Hi All,
I want to read one number from the file.
Only one number will be there in the file.
then i have to increment the number in my script and put it back in the same file.
Is it possible?
Can anybody help me?
Thanks,
Vinay (6 Replies)
Hi Guys,
I am new to unix.
Actually i want help in writing an single command where
i can actually read specific line number in file where the line number will be passed to command as parameter.
ex.
1 a
2 b
3 c
4 d
And to my command i pass as 2.
so i should get output as 2 b
... (15 Replies)
I have a file with a list of config files numbered on the lefthand side 1-300. I need to have bash read each lines number and assign it to a variable so it can be chosen by the user called by the script later.
Ex. 1 some data
2 something else
3 more stuff
which number do you... (1 Reply)
Hello, I'm trying to create a BASH file that can read all the files in my working directory and tell me how many words and lines are in that file. I wrote the following code:
FILES="*"
for f in "$FILES"
do
echo -e `wc -l -w $f`
done
My issue is that my file is outputting in one... (4 Replies)
Hello Everyone.
I am trying to display contains of a file from a specific line to a specific line(let say, from line number 3 to line number 5). For this I got the shell script as shown below:
if ; then
if ; then
tail +$1 $3 | head -n $2
else
... (5 Replies)
Hello All,
i am a newbie and need some help when reading a csv file in a bourne shell script. I want to read 10 lines, then wait for a minute and then do a reading of another 10 lines and so on in the same way. I want to do this till the end of file.
Any inputs are appreciated
... (3 Replies)
Hi all,
I have a file sample.txt
abc
asd
adf
daf
adw
add
adv
wdf
I want to control the number of lines to read
Like if i give input as ./script_name 2 5
required output
asd
adf
daf (2 Replies)
hello guys,
I'm struggled to get a number from a very long text file.
NAtoms= 33 NActive= 30 NUniq= 23 SFac= 1.00D+00 NAtFMM= 60 NAOKFM=F Big=F
Integral buffers will be 131072 words long.
Raffenetti 2 integral format.
The number 33 is what I wanted, always follows NAtoms=... (5 Replies)
I am new to ksh scripts. I would like to be able to read a file line by line from a certain line number. I have a specific line number saved in a variable, say $lineNumber. How can I start reading the file from the line number saved in $lineNumber? Thanks! (4 Replies)