10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello
I am facing a very unique problem and not able to understand why. I have written a function which will check header of the file. If header is present good else it will write the header on top
def writeHeaderOutputCSV(fileName):
# See if the file exist already
try:
... (0 Replies)
Discussion started by: radioactive9
0 Replies
2. UNIX for Dummies Questions & Answers
Hi,
I have a file whihc looks like
file_1 100 200
file_2 200 300
file_4 400 500
as the file_3 is missing so I want to replace it by
file_3 0 0
the final output would look like
file_1 100 200
file_2 200 300
file_3 0 0
file_4 400 500
Any help is highly appreciated.
Regards, (3 Replies)
Discussion started by: begin_2013
3 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I have 1000 files names data1.txt through data1000.txt inside a folder. I want to write a script that will take each first line from the files and write them as output into a new file. How do I go about doing that? Thanks! (2 Replies)
Discussion started by: evelibertine
2 Replies
4. Shell Programming and Scripting
Given a particular line number and a corresponding column number, can i write something in the file during run time?
For example x=1 and during runtime i want to write the value of x in column 100 of every line of a given file, then how shud that be done?
Thanks (9 Replies)
Discussion started by: arindamlive
9 Replies
5. Shell Programming and Scripting
Dear All,
I have a question that's been difficult to get an answer to.
I often write command line loops, e.g. find files, print name, grep for term, apply sed, etc
I use both zsh and bash.
When I write a loop e.g.
for line in `more myfile.txt`
> do
> echo $line
> done
but... (2 Replies)
Discussion started by: JohnK1
2 Replies
6. Shell Programming and Scripting
I want to put a text string in file using any method on specific line
line number 30
text to be put %this is location /var/www/filename (3 Replies)
Discussion started by: aliahsan81
3 Replies
7. Shell Programming and Scripting
Hi,
I have to write s script to check an input file for invalid characters. In this script I have to find the exact line of the invalid character. If the input file contain 2 invalid character sat line 10 and 17, the script will show the value 10 and 17. Any help is appreciated. (3 Replies)
Discussion started by: beginner82
3 Replies
8. Shell Programming and Scripting
I need to write value of variable $version at a particular line in a text file.
Line number is determined by another variable &line......I don't know how to do it in shell script ... (2 Replies)
Discussion started by: punitpa
2 Replies
9. Shell Programming and Scripting
Hi,
I'm reading and writing a line from one file to another.
Input line is like this:
My name is David. Working on a shell script now.
When I use "echo" or "print" output comes like this,
My name is David. Working on a shell script now.
Sample... (7 Replies)
Discussion started by: dateez
7 Replies
10. Shell Programming and Scripting
Hi,
Is it possible to accept a filename as command line parameter and then write to that file using command redirection? i tried the below script.
outputfile=`echo $1`
echo "Writing to file" > 'echo $outputfile'
exit $returncode
but it isnt working. is there any other way to... (9 Replies)
Discussion started by: silas.john
9 Replies