10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have multiple (~80) files (some can be as big as 30GB of >1 billion of lines!) to grep on a pattern, and piped the match to a single file. I have a 96-core machine so that each grep job was sent to the background to speed up the search:
file1.tab
chr1A_part1 123241847 123241848... (6 Replies)
Discussion started by: yifangt
6 Replies
2. Shell Programming and Scripting
Hi All,
I have came across an issue where I will grep for a primary key and then I have to delete that particular line from the feed file and then save it.
The feed file is a TAB delimited one.
For example:
grep 539439AE9 file1
100.00000 20090119 20090119 20090521 ... (4 Replies)
Discussion started by: filter
4 Replies
3. Shell Programming and Scripting
Hi All,
i have a csv file .
In the 7th column i have data that has line feed in it.
Requirement is to remove the line feed from the 7th column whenever it appears
There are 11 columns in the file
C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11
The value in C7 contains line feed ( Alt + Enter ),... (2 Replies)
Discussion started by: r_t_1601
2 Replies
4. Shell Programming and Scripting
Hi All,
My requirement is to remove line (3 Replies)
Discussion started by: r_t_1601
3 Replies
5. Shell Programming and Scripting
Hi
I have a file with lots of line feeds and form feeds (page break). Need to replace last occurrence of form feed (created by - echo "\f" ) in the file with line feed.
Please advise how can i achieve this.
TIA
Prvn (5 Replies)
Discussion started by: prvnrk
5 Replies
6. Shell Programming and Scripting
I am using AIX and ksh.
I need to display the contents of a file that has a pid (process id). Because the file is open, it doesn't have the line feed or new line, so for some reason if I do this:
`cat $pid` , where $pid is the name of the fully qualified file, it displays
test3.sh: 426110:... (1 Reply)
Discussion started by: Gato
1 Replies
7. Shell Programming and Scripting
my script gives 10 outputs continuously..In each output i have to remove the first line in the output.How to do that.
for eg : below is my output
0.00
1.00
5.00
0.00
7.00
i have to remove the first line of this output ie;0.00 (3 Replies)
Discussion started by: Krrishv
3 Replies
8. Shell Programming and Scripting
Hello I'm trying to write a shell script which can remove a carriage return and/or line feed from a file, so the resulting file all ends up on one line.
So, I begin with a file like this
text in file!<CR>
line two!<CR>
line three!<CR>
END!<CR>
And I want to end up with a file... (1 Reply)
Discussion started by: tbone231
1 Replies
9. Programming
What is the best method to identify an remove control characters in a file. Would it be easier to do this in Unix or in C. (0 Replies)
Discussion started by: oracle8
0 Replies
10. UNIX for Dummies Questions & Answers
What tools can I use to accomplish this?
I'm writing a shell script to analyze an inittab file. Here's a sample file:
init:3:initdefault:
ioin::sysinit:/sbin/ioinitrc >/dev/console 2>&1
tape::sysinit:/sbin/mtinit > /dev/console 2>&1
muxi::sysinit:/sbin/dasetup </dev/console >/dev/console... (10 Replies)
Discussion started by: jpprial
10 Replies