I am using Sun Solaris 5.8
I am trying to run a system command such as ls and echo inside awk, but when I run the following code system echo is not displayed.
bash-2.03$ ls | awk 'BEGIN {
print "first print"
system("echo system echo")
print "second print"
... (1 Reply)
Hi all,
I would like to replace some string in a text file by some string which would contains special characters like "/","\".
I.e. I have a text file with the statement contactperson somewhere in it.
Now I want to replace it by something else which includes special
characters like "/","\"
... (1 Reply)
Hi,
When i run the below command i am able to get the output.
awk '/BEGIN DSSUBRECORD/{c=3;next}c-->0' abc.txt |
awk '/END DSSUBRECORD/{exit}{print}' |
awk '/Owner/{exit}{print}' |
awk '{n2=n1;n1=n;n=$0;if(NR%3==0){printf"%s,%s,%s\n",n2,n1,n}}'
Output:
Name "file_name", ... (5 Replies)
Hi everyone,
when executing this command in unix:
echo "WM7 Fatal Alerts:", $(cat query1.txt) > a.csvIt works fine, but running this command in a shell script gives an error saying that there's a syntax error.
here is content of my script:
tdbsrvr$ vi hc.sh
"hc.sh" 22 lines, 509... (4 Replies)
Hi,
Putting across a few awk expressions.
Apart from the last, all of them are working.
echo a/b/c | awk -F'/b/c$' '{print $1}'
a
echo a/b/c++ | awk -F'/b/c++' '{print $1}'
a
echo a/b/c++ | awk -F'/b/c++$' '{print $1}'
a/b/c++
Request thoughts on why putting a '$' post double ++... (12 Replies)
Hi All
I have fired a command in linux
table=`echo ${file_name} | awk '{FS="/"; print $NF}' | awk '{FS="."; print $1}'`
where file_name has
/data/ds/dpr_ebicm_uat/backfill/temp/etl_app_info.csv
/data/ds/dpr_ebicm_uat/backfill/temp/etl_app_jobs.csv ... (10 Replies)
dear All,
my awk system command isn't working or rather I'm missing something in my command. Appreciated , if anyone can assist me what exactly I'm missing ??
awk ' /^/ {
> c=split($3,a,"/") ;for(n=1; n<=c; ++n)
> {
> if (system("test -d" /home/cubedata/20120104/"$1"/"a")) {
> print... (5 Replies)
Hi All,
I am trying to run awk command on .DAT file and it is not working. The same command is working on .txt file:
Contents of the file ZZ_55555555_444444_ZZZZZZ_7777777_888_99.DAT:
HEADER|ZZ_55555555_444444_ZZZZZZ_7777777_888_99.DAT... (10 Replies)
Hi,
I have around 10 files in a folder in which I want to change the file format from tab(\t) to pipe(|) with some changes in the fields as well. Below is the code, while tmp file is getting generated but move command is not working, please help
Following is the code
awk -F"\t" '{print... (2 Replies)
Following one line of awk code removes first 3 characters from each line but when I run the same code on another linux platform it doesn't work and only prints blank lines for each record. Can anyone please explain why this doesn't work? (31 Replies)
Discussion started by: later_troy
31 Replies
LEARN ABOUT DEBIAN
tac
TAC(1) User Commands TAC(1)NAME
tac - concatenate and print files in reverse
SYNOPSIS
tac [OPTION]... [FILE]...
DESCRIPTION
Write each FILE to standard output, last line first. With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-b, --before
attach the separator before instead of after
-r, --regex
interpret the separator as a regular expression
-s, --separator=STRING
use STRING as the separator instead of newline
--help display this help and exit
--version
output version information and exit
AUTHOR
Written by Jay Lepreau and David MacKenzie.
REPORTING BUGS
Report tac bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report tac translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2011 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO rev(1)
The full documentation for tac is maintained as a Texinfo manual. If the info and tac programs are properly installed at your site, the
command
info coreutils 'tac invocation'
should give you access to the complete manual.
GNU coreutils 8.12.197-032bb September 2011 TAC(1)