All Questions
7
questions
0
votes
1
answer
33
views
How to add a counter starting from a number other than 1?
I have a file where I need to add 200 more lines, but I'd like to know how to renumber them automatically. The file has the following structure:
col1\tcol2\tdb4444\tcol4\tcol5\tcol6\tcol7\tcol8\tcol9\...
- 11
0
votes
2
answers
44
views
shell - multiple text insertion into each line of a file
I have a text containing coordinates of points such as x, y and z, I would like to change each line to be like:
Point{ (1000+linenumber) } = {x , y, z};
What I want is: for example for line 212 ...
- 103
0
votes
1
answer
643
views
Piping a line of the file read with while read loop
I am trying to read each line of the file and then assign some parts of it to variables. A line itself is read as a variable so I need to process a variable input say for cat which seems to be ...
- 1
1
vote
2
answers
790
views
Adding text to the end of multiple files, minus one line( Adding return 0; at the end of each program in C)
I have a bunch of C programs from K&R and of course, no return statement. I was wondering if there was a way to cat to the end of each file (except one line before the end, so EOF - 1) the ...
- 195
0
votes
1
answer
732
views
How to print statistics from lines in a file
I often find myself computing percentages manually after filtering through a log file to find the proportion of X or Y in it. Can this easily be achieved via common CLI tools?
- 135
0
votes
1
answer
908
views
Combining multiple data files with header while also adding a data column
I have multiple tab delimited data files that are separated by month in the format jan06.txt, feb06.txt, ..., dec07.txt.
Within each file, it looks something like:
Header1 Header2 Header3 ...
Data1 ...
- 223
31
votes
18
answers
86k
views
List only the device names of all available network interfaces
I want to get a list of all available Network-Device Names on my Linux server. I figured that
ifconfig
would do the job, however ifconfig produces quite much output:
eth0 Link encap:Ethernet ...
- 593