05-17-2017
You didn't say which awk you are using. If your awk is linked to nawk or gawk, there is also an alternative to the solution posted by
Don Cragun, in that you could export your shell variable (so that it becomes an environment variable) and use awk's built-in ENVIRON array to access it. If you follow this route, I strongly recommend to write the variable in all-uppercase.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I'm having problems since few days ago, and i'm not able to make it works with a simple awk+grep script (or other way to do this).
For example, i have a input file1.txt:
cat inputfile1.txt
218299910417
1172051195
1172070231
1172073514
1183135117
1183135118
1183135119
1281440202
... (3 Replies)
Discussion started by: poliver
3 Replies
2. Shell Programming and Scripting
I need only those records which has $2 equal to "DEF" independent of case (i.e upper or lower)
nawk -F"," '$2 ~ //{print $0}' file
This returns 3rd record also which i dont want
I tried this but this doesnt work as expected.
nawk -F"," '$2 == ""{print $0}' file
i dont... (3 Replies)
Discussion started by: pinnacle
3 Replies
3. Shell Programming and Scripting
Hi, I am new to this unix world.
Any ways, I would like to write a shell script that can print the file name.
Ex :
directory will have 5 files with different name.No matter what are contents are.
Now I need to find the file which will have particular name (sub string ).Please do not... (5 Replies)
Discussion started by: akb2010
5 Replies
4. Shell Programming and Scripting
Hi,
This is most likely a dumb question but I could not find answer to it elsewhere.
I'm building a simple menu with case /esac and want to read user's input:
Please enter XYZ ; read XYZ
How do I take the value of XYZ and insert it as a variable $XYZ in file file.txt ?
I may need to... (9 Replies)
Discussion started by: svetoslav_sj
9 Replies
5. Shell Programming and Scripting
Hello,
I have a huge file, I am currently using while loop to read and do some calculation on it, but it is taking a lot of time.
I want to use AWK to read and do those calculations.
Please suggest.
currently doing:
cat input2 | while read var1
do
num=`echo $var1 | awk... (6 Replies)
Discussion started by: anand2308
6 Replies
6. Shell Programming and Scripting
Hello,
I have a set of files Xfile0001 - Xfile0021, and the content of this files (one at a time) needs to be printed between some line (lines start with word "Generated") that I am extracting from another file called file7.txt and all the output goes into output.txt. First I tried creating a for... (5 Replies)
Discussion started by: jaldo0805
5 Replies
7. Shell Programming and Scripting
Hi All,
Do we know how to read input file within awk script and send output toanother log file. All this needs to be in awk script, not in command line. I am running this awk through crontab.
Cat my.awk
#!/bin/awk -f
function test(var){
some code}
{
}
END
{
print"test code"
} (5 Replies)
Discussion started by: random_thoughts
5 Replies
8. Shell Programming and Scripting
I have a file1.txt with several 100k lines, each of which has a column 9 containing one of 60 "label" identifiers. Using an labels.txt file containing a list of labels, I'd like to extract 200 random lines from file1.txt for each of the labels in index.txt.
Using a contrived mini-example:
$ cat... (8 Replies)
Discussion started by: pathunkathunk
8 Replies
9. UNIX for Beginners Questions & Answers
Hi All,
We've a VDI infrastructure in AWS (AWS workspaces) and we're planning to automate the process of provisioning workspaces. Instead of going to GUI console, and launching workspaces by selecting individual users is little time consuming. Thus, I want to create them in bunches from AWS CLI... (6 Replies)
Discussion started by: arun_adm
6 Replies
10. Shell Programming and Scripting
I'm working on Aix 6.1 and using ksh shell.
The below works fine on Linux bash or ksh shell .
while IFS= read -r dirpath ; do
echo "Hi"
done <<<"$var"
However, any such while loop that reads the input from file or variable using <<< fails on Aix system with the below error:
Below... (2 Replies)
Discussion started by: mohtashims
2 Replies
LEARN ABOUT DEBIAN
dpkg-www
DPKG-WWW(1) General Commands Manual DPKG-WWW(1)
NAME
dpkg-www - program to remotely open a WWW Debian package browser
SYNOPSIS
dpkg-www [-s|--stdout] [-h|--host host] [query]
DESCRIPTION
dpkg-www is used to remotely control a WEB browser and open a dpkg URL on the local host from an interactive shell or script.
If the command is invoked while running under X-window the script will try to find an installed X browser to open the specified URL. If
not running under X it will try to use a text browser instead.
If Netscape is found and a Netscape instance is already running it will be asked to open the dpkg URL on localhost with the optional query
supplied on the command line. If there is no browser running, it will start automatically a new one.
The functionality provided by this program is identical to running a web browser with the -remote openURL(http://localhost/cgi-bin/dpkg)
argument or opening the same URL from within the browser.
dpkg-www-installer is an helper application which can configured in the WWW browser for web installation. It should never be invoked
directly by the user.
OPTIONS
-s, --stdout
Redirect output to stdout. Requires one of the text browsers (lynx, lynx-ssl or links) installed.
-h, --host host
Send the query to a remote host, where dpkg-www must be installed.
query Specifies an optional package name, an absolute pathname or a query argument which is passed to the dpkg cgi-bin. See dpkg-www(8)
for more information about the use of the cgi.
FILES
/etc/dpkg-www.conf
~/.dpkg-www
Configuration files for dpkg-www. It is not necessary for these files to exist, there are sensible defaults for everything, but you
can specify your preferred www browser with the DPKG_WWW_BROWSER variable, for example: DPKG_WWW_BROWSER=mozilla
EXAMPLES
dpkg-www
This would open a dpkg URL on localhost listing all the installed packages.
dpkg-www bash
This would open a dpkg URL asking info on the bash package.
dpkg-www -h pisolo bash
This would open a dpkg URL asking info on the bash package on host pisolo.
dpkg-www 'dpkg*'
This would open a dpkg URL listing all packages matching dpkg*.
dpkg-www /bin/bash
This would open a dpkg URL asking info on the package(s) owning the file /bin/bash .
dpkg-www depends=svgalib
This would open a dpkg URL listing all packages depending on svgalib.
dpkg-www --stdout depends=awk | grep ^ii
This would list on stdout all packages depending on awk and grep all lines of installed packages.
SEE ALSO
dpkg(8), dpkg-www(8)
AUTHOR
Massimo Dal Zotto <dz@debian.org>.
Bugs should be reported via the normal Debian bug reporting system.
LICENCE
dpkg-www is licensed under the GNU General Public License version 2.
September 1, 2004 DPKG-WWW(1)