First of all, you must put in 'ticks' not "quotes" around the embedded g/awk code, because in the latter $1 $2 ... are substituted with positional shell parameters. The shell does this before it passes the code string to g/awk.
I get the following message if I use single quotes:
It runs ok using double quotes
Quote:
Unfortunately your min works only if the first line in output.txt has non-null value, so with your sample data the rest of the algorithm (which I don't really understand) doesn't work out, always printing the input line followed by a zero.
You right! Let me work a bit more on that. Any suggestions to improve the first script so I dont keep using | to stitch it all together?
I need to do a substitution: CPF to ,C,P,F, CPM to ,C,P,M, SPF to ,S,P,F etc. I can do each of them with separate substitutions e.g. s/CPF/,C,P,F/ but I'd like to know if there is a more elegant solution. In general, how can I use the results of the search in the substitution, ... (3 Replies)
Is there a way to simplify stating 1 through to 10, for example in a for loop construct?
for x in 1 2 3 4 5 6 7 8 9 10
do
....
done
I have tried (1-10) with no luck.. thanks (2 Replies)
tcpdump -nr testdump|awk '!/:/;gsub(/^+|+$/,""){print $3};a!~$0;{a=$0};{print $3};!/length/;/./;!/11\:/;!/8 7 6 5 4 3 2 1/;!/UDP/{b=$0} END {for (j=i-1; j>=0; ) print b };{for (i=NF; i>0; i--) printf("%s ",i);printf ("\n")}'
*NOTE IN j>=0 the ; ) was given a space since a smiley is showing up...... (1 Reply)
my script:
FILE="$1"
echo "You Entered $FILE"
if ; then
tmp=$(cat $FILE | sed '/./!d' | sed -n '/regex/,/regex/{/regex/d;p}'| sed -n '/---/,+2!p' | sed -n '/#/!p' | sed 's/^*//' | sed -e\
s/*:// | sed -n '/==> /!p' | sed -n '/--> /!p' | sed -n '/regex/,+1!p' | sed -n '/======/!p' | sed -n... (1 Reply)
Hi,
Is there a way to simplify the below script? Because I am having problems executing this if I added this to CRON. Also, you may notice that its objective is to put all information in one file (rm1.txt). And in addition file "sRMR_6.txt" to sRMR_23.txt" changes its information everyday.... (4 Replies)
Hello,
I have a large number of sed commands that I execute one after the other, simply because I don't know if there's a shorter way to do it. I hope someone can help me save some time :-)
These are my commands:
1.) remove all " in the file:
sed -e 's/\"//g' file
2.) insert ( and... (3 Replies)
the code below is a small fragment of the actual line, in fact i have about 20 values i'm comparing and want to know if it can be simplified. other than the x.xx.xx format of the value they have nothing in common
if || || ; then
do this
else
do this
fiany suggestions? (6 Replies)
Hi all, I don't have much experience with shell scripting and I was wondering if there's a shorter way to write this.
Basically, given a list of strings separated by new lines, I want to prepend each string with a prefix and separate the strings with commas
i.e.
stra
strb
strc
becomes... (3 Replies)
Hello,
I want to submit my awk script into cluster queue as my job takes about forty minutes to finish so I can not run it on the main node.
My awk script is like the following and I have three files. so, I write :
qsub -q short.q Myscript.awk file1 file2 file3
It submits the work into... (1 Reply)
I have the following script:
awk -F "," '{ if ( $4 > 450 && $4 < 550 && $5 > 0.5 ) print $2, $5; else print $2, "0" }' test.txt | awk '{a+=$2}END{for(i in a){print i, a}}' | sort -nk 1.2 | sed 1,2d
and a bunch of files that look like the test file attached here.
I am outputting all... (2 Replies)