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*edit* it works, pasting error. thanks :)

hi i have a folder full of files. some of the names are quite off because the dimensions were the same and i had to put a 'b' after the initial number so that it didnt overwrite. what i want is a...

solved. thanks raja, it worked

thats fine. how do i do it in sed, i could pipe the changes into a new file. i prefer single line commands as i haven't mastered executing scripts yet.

hi how do i delete a block of text from a text file within known line numbers. e.g. from line 43 to lint 58. between and including these kines, i want the block deleted.

solved. thank you. i'm using the sed command

How do you grep every nth line number from a file?

the following is what is output using your code,

...
400160 0.13202E-05 0.37790E-15 7732 -0.83922E-05 0.84854E-05
400170 0.13202E-05 0.38622E-15 7732 -0.83929E-05 ...

i have used the following code previously,
less a.dat | grep ".[0-9][0-9][0-9]0000..." > x.dat
which had worked very well previously but now need to take line number into consideration. is there a...

I need help with extracting data from a large file ~900mb. Below is how the data looks like,
line number value
1001 10000
... ...
5001 50000
6001 ...

solved
look at the line no. in the file opened in vi, then snip of useless info with split command from line number. then attach to the useful one using less command and pipe to a new file name

hi, i was wondering how do i split a large text output file from a keyword, e.g. as soon as 'saveabc.dat' appears in the file. any answers would be much appreciated. thanks:confused:

zaxxon, i am unbelievably grateful. muchos gracias :)!!!!

this is what happens when i type top -i,

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
25143 x 20 0 526m 198m 1048 R 100 5.0 21647:25 a.exe
25213 x 20 0 ...

help! i need help with locating where a program is being run from. when i type top -i it only lists the name and minimal info, not the programs location from where it is being ran. i ask because i...