try like this but if awk statement does not match then your output file is empty
for exam if the nr 1 first val is not "zzz" in the *.log
and must not be forget close backquotes
and in your awk code second curly brackets is unnecessary
Code:
for file in `ls *.log`
do
a=100
b=`echo $file | cut -d_ -f4 | cut -d. -f1`
c=`echo $file | sed "s/$b/$a/"`
awk ' { if(NR==1) $1="zzz" } ' $file > $c
rm $file
done
---------- Post updated at 10:20 PM ---------- Previous update was at 10:14 PM ----------
and if you tell clearly what you want to do then i can help you more than
I want to run tail -f to continuously monitor a log file, outputing a specific field to a second log file. I can get the first portion to work with the following command:
tail -f log | awk '{if ($1 == "Rough") print $5}'
also:
awk '{if ($1 == "Rough") print $5}' <(tail -f log)
The... (2 Replies)
Hi,
i use awk -F to print three variable delimited by comma $1 $2 $3
if $2=="" i want to extract this information missing from another file using awk -v + some process.
but the problem i can't use the two awk together cause of redirection
there's a solution.
note: i can't use another... (1 Reply)
Hi,
The code below works, it's a part of a bash shell script that serve to search a pattern $pattern_da_cercare in the files contained in a directory $directory_iniziale.
Now the proble is:
How can I redirect stderr to a file?
PS: so I want to redirect ALL the errors to a file.
I tryed... (9 Replies)
Hello,
i need to redirect the output of print to a variable file name:
#This is normal
awk '{ print $17 > "output.txt" }' input
#I need something like this
awk '{ print $17 > "output_${25}.txt" }' input
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I'm trying to find average of values in 2nd column in some files. Filenames have following pattern eg:
tau_2.54_even_v1.xls
tau_2.54_odd_v1.xls
tau_1.60_v1.xls
tau_800_v1.xls
#!/bin/bash
for file in pmb_mpi tau xhpl mpi_tile_io fftw ; do
for f in "2.54" "1.60" "800" ;do
if... (2 Replies)
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Hello everyone,I'm reading a book and there's code fragment:
exec 3>&1
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I almost reach my objective (Youhouuu !!!!)
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So I'm writing a script which tries to parse human-readable addresses. Part of it is this:
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Discussion started by: Corona688
5 Replies
LEARN ABOUT DEBIAN
pclock
PCLOCK(1) General Commands Manual PCLOCK(1)NAME
pclock - pixmap clock
SYNOPSIS
pclock [options]
DESCRIPTION
This manual page documents briefly the pclock command. This manual page was written for the Debian GNU/Linux distribution because the
original program does not have a manual page.
pclock is a program that places a small analog clock program on the desktop of X. It was designed to run under the WindowMaker window man-
ager. It uses any 64x64 pixmap as a background.
OPTIONS
The programs follow the usual GNU command line syntax, with long options starting with two dashes (`-') and short optoins starting with one
dash. A summary of options is included below.
-B PIXMAP, --background=PIXMAP
Use the given pixmap as the clock background (size must be 64x64).
-H COLOR, --hands-color=COLOR
Draw the hands (hour, minute and second) in the specified color.
-S COLOR, --second-hand-color
Draw the second hand in the specified color
-h, --help
Show summary of options.
--hour-hand-length=INT
Draw the hour hand with the specified length of INT.
--minute-hand-length=INT
Draw the minute hand with the specified length of INT.
--second-hand-length=INT
Draw the second hand with the specified length of INT.
--second-hand-width=INT
Draw the minute hand with the specified width of INT.
-s, --second-hand
Don't display the second hand.
-v, --version
Show version of program.
-w, --withdrawn
Don't start up in a withdrawn (iconic) state.
AUTHOR
This manual page was written by Darren Benham <gecko@debian.org>, for the Debian GNU/Linux system (but may be used by others). The soft-
ware is copyrighted (c) 1998 by and released under the GPL v2.
Author: Alexander Kourakos <Alexander@Kourakos.com>
Web: http://www.kourakos.com/~awk/pclock/
PCLOCK(1)
10-07-2010
