12-19-2007
For part 1 ...
TESTVAR=$(find . -name log_20070911* |wc -l)
echo $TESTVAR
1
If you enclose a command in $( ) then the output of that command is used, in this case, assigned to the variable TESTVAR.
You could use ` ` also.
Martin
(Parts 2/3 I need to think about)
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi there,
I am a student and currently working on a project. I have a file that contains about 50 filenames. (1.txt, 2.txt, 3.txt ...).
I would like to know how can I store these filenames into a variable using a loop?
I would appreciate if anyone can help me. Thank You.
Regards,
Bib (4 Replies)
Discussion started by: coolbib
4 Replies
2. Shell Programming and Scripting
I'm in .profile. I want to export a directory ( export MY_TOOL_HOME=/tools/my tool". Unfortunately for me, the directory I want to export to has a space in its name. So when I try to cd $MY_TOOL_HOME, i get a No such file or directory at the command line... thanks for the help (4 Replies)
Discussion started by: redsand9009
4 Replies
3. Shell Programming and Scripting
Hi,
I'm very new to bash scripting and Linux in general. I'm running Ubuntu Server 10.04 and trying to write a bash script to launch a program. In doing so, I've come across a couple of things that I obviously don't understand. Here is a short script that exemplifies those things:
... (9 Replies)
Discussion started by: Carson Dyle
9 Replies
4. Shell Programming and Scripting
Hi
I'm just messing around with bash and trying to learn it because I have a course next semester dealing with OS design where we need to know how to use SSH client and either bash or ksh. I've never done shell scripting before.
I just started today and I was wondering how parsing files... (1 Reply)
Discussion started by: mehungry
1 Replies
5. UNIX for Dummies Questions & Answers
Hi all, I'm looking for an awk solution for taking bins of data set.
For example, if I have two columns of data that I wish to use for a scatter plot, and it contains 5 million lines, how can I take averages of every 100 points, 1000, 10000 etc...
The idea is to take bins of the 5,000,000 points... (7 Replies)
Discussion started by: torchij
7 Replies
6. Shell Programming and Scripting
Hi all,
I think so I’m getting the result is wrong, while using following awk commend,
colval=$(awk 'FNR>1 && NR==FNR{a=$4;next;} FNR>1 {a+=$4; print $2"\t"a/3}'
filename_f.tsv filename_f2.tsv filename_f3.tsv)
echo $colval >> Result.tsv
it’s doing the condition 2 times, first result... (5 Replies)
Discussion started by: Shenbaga.d
5 Replies
7. Shell Programming and Scripting
Hi, i want to print 2nd column value with the below script. I need to take input of the string i need to search in that file and file name. How can i take these two as inputs? using read command? Getting error for below script.
echo "enter SID"
read SID
echo "enter filename"
read filename... (8 Replies)
Discussion started by: sam_bd
8 Replies
8. Shell Programming and Scripting
Hi all,
I have drill to do and I'll very appreciate your help:
Please create a simple CSV file as follow (3 columns and 4 rows):
A,B,C
A,”B,C”,D
“A,B”,C,D
o A,B,”C,D”
- Please refer to the comma between the quotation marks as a parameter and not as a separator.
- Please provide... (3 Replies)
Discussion started by: elior
3 Replies
9. Shell Programming and Scripting
Hi forums,
Wondering if someone could assist me!!...
I basically want to do a while read line on a file and input it into a set of parameters for a JSON geospatial demo.. With a loop where every line creates a new "card" to an effect... card example below...
Data CSV one line:
... (4 Replies)
Discussion started by: skoot
4 Replies
10. Shell Programming and Scripting
Please bear with me, I'm a beginner but have had some experience and decent knowledge to understand things as I read them and I'm in the process of trying to learn more. I recently inherited a UNIX server which has a bash script which is part of a crontab schedule that needs to be modified (or... (3 Replies)
Discussion started by: Danylko
3 Replies
IGAWK(1) Utility Commands IGAWK(1)
NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO
gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
Free Software Foundation Nov 3 1999 IGAWK(1)