One reason why a utility like awk might see an asterisk and include it in a diagnostic message even though it isn't visible when you cat the script onto your terminal is <backspace> characters in your script file. For example, if what you're seeing on your screen as:
actually contained some other text and <backspace>s as in the following:
that would produce the diagnostic message you've shown us from the script you've shown us.
Have you tried using:
to see if there are any invisible characters in your script?
Hi, guys. I have one question:
I have two files: passwd and shadow (the number of records in these files are not equal)the contents of them are below:
passwd:
**************
ftp:x:24:24:
sshd:x:71:65:
uucp:x:10:14:
brownj:x:5005:1000:
sherrys: x :5006:1000:
...
*************
... (2 Replies)
hi experts
please help me,thanks in advance
file1
arch : x86
install : pass
make os : pass
make build kernel : pass=100 failed=45
usb storage pass : The Linux Kernel Archives
file2
arch : ppc
install : failed
make os : http://kernel.org (6 Replies)
Help
I read a file that has 2 fields.
look for in a second file the first field and update it with the second field of first file.
file1
1131518fat11416.txt ../newaod/2001/04/2001-04-00129233-1.txt
file2
INSERT INTO tabric
VALUES... (2 Replies)
Hi All,
I have 2 csv files. 1st file has 10 columns and the 2nd file has 12 columns.
The requirement is, if the 4th column of file1 matches with the 4th column of file2, then append the 12th column of file2 with file1.
Both files have equal number of lines and the 4th column values are... (1 Reply)
Dear programmers,
I have a question about conditionally merging multiple files and having their file names in the first column.
Input files:
file.1.extension file.2.extension file.3.extension file.4.extension ... file.1000.extension
where each file looks like this (with multiple lines):... (5 Replies)
Hello folks!
I am new to Shell and awk scripting.
This is my shell script that receives a string as an input from the user from the stdin.
#!bin/sh
printf "Enter your query\n"
read query
cmd=`echo $query | cut -f 1 -d " "`
input_file=`echo $query | cut -f 2 -d " "`
printf $input_file... (10 Replies)
Hi,
From a file, using:
awk -F" " '{ if (NF == 6) print $1, $2, $3, $4, $5, $6; if (NF == 5) print $1, $2, $3, $4, $5; }'
i printed out the required output. But i'm trying to merge the columns. Please look at the desired output. Any suggestions? Thanks
Output:
00015 PSA1 ... (5 Replies)
Discussion started by: web2moha
5 Replies
LEARN ABOUT CENTOS
stap-merge
STAP-MERGE(1) General Commands Manual STAP-MERGE(1)NAME
stap-merge - systemtap per-cpu binary merger
SYNOPSIS
stap-merge [ OPTIONS ] [ INPUT FILENAMES ]
DESCRIPTION
The stap-merge executable applies when the -b option has been used while running a stap script. The -b option will generate files per-cpu,
based on the timestamp field. Then stap-merge will merge and sort through the per-cpu files based on the timestamp field.
OPTIONS
The systemtap merge executable supports the following options.
-v Verbose mode, displays three extra fields per set of collected data.
[cpunumber,sequencenumberofdata,thelengthofthedataset]
-o OUTPUT_FILENAME
Specify the name of the file you would like the output to be redirected into. If this option is not specified than the output will
be pushed to standard out.
EXAMPLES
$ stap -v -b -e 'probe syscall.open { printf("%s(%d) open
",
execname(), pid()) }'
This should result in several stpd_cpu files (each labled with a number representing which cpu the file was produced from).
$ stap-merge -v stpd_cpu0 stpd_cpu1
Running the stap-merge program in the same directory as the stap script earlier in the example, will produce an ordered sequence of packets
with the three part label for each set of data. This result will be pushed through the standard output. An output file could have been
specified using the "-o" option.
FILES
Important files and their corresponding paths can be located in the
stappaths(7) manual page.
SEE ALSO stapprobes(3stap),
stappaths(7),
staprun(8),
stapvars(3stap),
stapex(3stap),
stap-server(8),
gdb(1)BUGS
Use the Bugzilla link of the project web page or our mailing list. http://sourceware.org/systemtap/,<systemtap@sourceware.org>.
STAP-MERGE(1)