08-31-2013
Read your shell's man page on command substitution.
Read the awk man page. It's a very powerful pattern scanning and text processing language.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I am beginner in awk
awk 'BEGIN{for(i=1;(getline<"opnoise")>0;i++) arr=$1}{print arr}'
In the above script, opnoise is a file, I am reading it into an array and then printing the value corresponding to index 20. Well this is not my real objective, but I have posted this example to describe... (1 Reply)
Discussion started by: akshaykr2
1 Replies
2. Shell Programming and Scripting
awk
'BEGIN {
print "line one\nline two\nline three"
}'
After ./awktest.sh
Usage: awk -f progfile file ...
Usage: awk 'program' file ...
POSIX options: GNU long options:
-f progfile --file=progfile
-F fs --field-separator=fs
-v var=val ... (7 Replies)
Discussion started by: cola
7 Replies
3. Shell Programming and Scripting
Hi Experts,
The question may look very silly by seeing the title, but please have a look at it clearly.
I have a text file where the first 5 columns in each row were supposed to be attributes of a sample(like sample name, number, status etc) and the next 25 columns are parameters on which... (3 Replies)
Discussion started by: ks_reddy
3 Replies
4. Shell Programming and Scripting
Dear People,
My query is:
have a file, which looks likes this:
10 20 30 40 50
1 2 3 4 5
100 200 300 400 500
what i need is: "PRINT EACH LINE TO AN UNIQUE FILE"
desired output:
file 1
10 20 30 40 50
file 2
1 2 3 4 5 (3 Replies)
Discussion started by: saint2006
3 Replies
5. Shell Programming and Scripting
Hi!
I have a strange behaviour from sed and awk, but I'm not sure, if I'm doing something wrong:
I have a list of words, where I want to add the following string at the end of each line:
\;\;\;\;0\;1
I try like this:
$ cat myfile | awk '{if ( $0 != "" ) print $0"\;\;\;\;0\;1"}'
Result:... (5 Replies)
Discussion started by: regisl67
5 Replies
6. Shell Programming and Scripting
I found that
echo "aaa" | awk '{print ",\\";}'
works, and it will give "\".
but
ddd=`echo "aaa" | awk '{print ",\\";}'`; echo $ddd
will not work.
Could anyone tell me why? thank you. (8 Replies)
Discussion started by: wxuyec
8 Replies
7. UNIX for Dummies Questions & Answers
Hi,
I have written below script to begin if the line has n
#!/bin/ksh
/usr/xpg4/bin/awk {/ n / 'BEGIN {X = "01"; X = "02"; X = "03"; X = "04";
X = "05"; X = "06"; X = "07"; X = "08";
X ="09"; X = "10"; X = "11"; X = "12"; };}
NR > 1 {print $1 "\t" $5 "," X "," $6 " " $7}'} input.txt |... (9 Replies)
Discussion started by: stew
9 Replies
8. Shell Programming and Scripting
My code fails to do anything if I've BEGIN block in it:
Run the awk script as:
awk -f ~/bin/sum_dupli_gene.awk make_gene_probe.txt
#!/usr/bin/awk -f
BEGIN {
print ARGV
#--loads of stuff
}
END{
#more stuff
} (14 Replies)
Discussion started by: genome
14 Replies
9. Shell Programming and Scripting
Hi,
diffcount=`awk 'BEGIN { while ( getline < "/scripts/matt/text.server1.reference" ) { arr++ } } { if (!( $0 in arr ) ) { print } }' $TMPDIR/$(basename $0 .sh) | wc -l`
if ]; then
OK="OK - No change in the interfaces status"
elif ]; then
DIFF=`awk 'BEGIN {... (4 Replies)
Discussion started by: nms
4 Replies
10. Shell Programming and Scripting
Example:
I have files in below format
file 1:
zxc,133,joe@example.com
cst,222,xyz@example1.com
File 2 Contains:
hxd
hcd
jws
zxc
cst
File 1 has 50000 lines and file 2 has around 30000 lines :
Expected Output has to be :
hxd
hcd
jws (5 Replies)
Discussion started by: TestPractice
5 Replies
LEARN ABOUT DEBIAN
fc-pattern
FC-PATTERN(1) FC-PATTERN(1)
NAME
fc-pattern - parse and show pattern
SYNOPSIS
fc-pattern [ -cdVh ] [ --config ] [ --default ] [ -f format | --format format ] [ --version ] [ --help ]
[ pattern [ element ... ] ]
DESCRIPTION
fc-pattern parses pattern (empty pattern by default) and shows the parsed result. If --config is given, config substitution is performed
on the pattern before being displayed. If --default is given, default substitution is performed on the pattern before being displayed.
If any elements are specified, only those are printed.
OPTIONS
This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included
below.
-c --config
Perform config substitution on pattern.
-d --default
Perform default substitution on pattern.
-f --format format
Format output according to the format specifier format.
-V --version
Show version of the program and exit.
-h --help
Show summary of options.
pattern
Parses and displays pattern (uses empty pattern by default).
element
If set, the element property is displayed for parsed pattern.
SEE ALSO
FcNameParse(3) FcConfigSubstitute(3) FcDefaultSubstitute(3) FcPatternPrint(3) FcPatternFormat(3) fc-cat(1) fc-cache(1) fc-list(1) fc-
match(1) fc-query(1) fc-scan(1)
The fontconfig user's guide, in HTML format: /usr/share/doc/fontconfig/fontconfig-user.html.
AUTHOR
This manual page was updated by Behdad Esfahbod <behdad@behdad.org>.
16 April 2012 FC-PATTERN(1)