I just discovered this useful bit of code on this useful-looking website.
#!/bin/sh
exec tclsh "$0" ${1+"$@"}
proc main {} {
set lines [lrange [split [read stdin] \n] 0 end-1]
set count [llength $lines]
for {set idx_1 0} {$idx_1 < $count} {incr idx_1} {
set idx_2 [expr {int($count * rand())}]
set temp [lindex $lines $idx_1]
lset lines $idx_1 [linde
I need to count the number of lines in x files and compare which has more.
The one I've done only takes two files and compares them.
Is there any way to add lines to the pattern space of sed?
I know a bit about the N flag, but am not able to use it to do what I want which is:
read a file n lines at a time. If I find a match I quit else move to the next line. e.g.
Hi all,
I have a tab-delimited text file of size 10Mb. I am trying to count the number of lines using,
Code:
grep -c . sample.txt
or
Code:
wc -l < sample.txt
or
Code:
awk 'END {print NR}' sample.txt
All these commands shows the count as 1, which means they are reading only the first header line of the file.
I have a command returning multiple lines.
Code:
/bin/sed -n ';4757335,$ p' | wc -l
/bin/sed -n ';4757335,$ p' | egrep "Failed" | egrep -c "PM late arrrival"
how can i combine the above two sed commands into one? i want to count the number of lines between the specified line number and the end of the file.
I try to count number of lines of a data.txt file and then if number of lines is greater than 1 then email me the file.
I could not find what is wrong with my code, hope you can point out the mistake i made
Code:
#!
In the same spirit as this other question: cat line X to line Y on a huge file:
Is there a way to open from within Emacs (and
show on a buffer) a given set of lines (e.g. all lines between line X and Y) from a huge text file?
E.g.
i want to search a log for a string.
Email this page
