I want to exclude (-v) blank records from a file before analysing it.
I know I can use '^]$' for spaces and tabs but how do you look for lines that have nothing (/n or line feed) ? (2 Replies)
Wants to print line when there exist leading or trailing space or tab in fields 2,3 and 5
The below code prints all lines in file even if they dont have leading and trailing space or tab.
nawk -F"|" '{for(i=1;i<=NF;i++) {if ($i ~ "^*" || $i ~ "*$")}}1' file
file
Ouput required:
... (5 Replies)
Hello,
Is there a direct command to check if the delimiter in your file is a tab or a space? And how can they be converted from one to another.
Thanks,
G (4 Replies)
Hi, I want to read lines from a file, and I'm using two methods
1 use
while read line
do
done<filename
2 use
line=`sed -n '3p' filename`
however, in both of them, I notice that the tab between fields are automatically converted to space
because I want to use awk over the... (10 Replies)
Hi,
I have a space delimited text file but I only want to change the first space to a tab and keep the rest of the spaces intact. How do I go about doing that? Thanks! (3 Replies)
I have a variable sumOfJEOutputFile which is the output file of an SQL command which contains the output of that SQL. The output looks like below:
-----------
58
I am using following code to manipulate the output:
(sed 1,2d $sumOfJEOutputFile > $newTemp1 | sed '$d' $newTemp1)... (4 Replies)
Input file:
xyz,pqrs.lmno,NA,NA,NA,NA,NA,NA,NA
abcd,pqrs.xyz,NA,NA,NA,NA,NA,NA,NA
Expected Output:
xyz pqrs.lmno NA NA NA NA NA NA NA
abcd pqrs.xyz NA NA NA NA NA NA NA
Command Tried so far:
awk -F"," 'BEGIN{OFS=" ";} {print}' $File_Path/File_Name.csv
Issue:... (5 Replies)
My file looks like
3 33 210.01.10.0 2.1 1211 560 26 45 1298 98763451112 15412323499 INPUT OK
3 233 40.01.10.0 2.1 1451 780 54 99 1876 78787878784 15423210199 CANCEL OK
Aim is to replace the spaces in each line by tab
Used: sed -e 's/ */\t/g'
But I get output like this... (3 Replies)
Discussion started by: sa@@
3 Replies
LEARN ABOUT DEBIAN
prune
prune(1) General Commands Manual prune(1)NAME
prune - Prune directed graphs
SYNOPSIS
prune [ -n node ] [ -N attrspec ] [ files ... ]
DESCRIPTION
prune reads directed graphs in the same format used by dot(1) and removes subgraphs rooted at nodes specified on the command line via
options. These nodes themselves will not be removed, but can be given attributes so that they can be easily located by a graph stream edi-
tor such as gvpr(1). prune correctly handles cycles, loops and multi-edges.
Both options can appear multiple times on the command line. All subgraphs rooted at the respective nodes given will then be processed. If a
node does not exist, prune will skip it and print a warning message to stderr. If multiple attributes are given, they will be applied to
all nodes that have been processed. prune writes the result to the stdout.
OPTIONS -n name
Specifies name of node to prune.
-N attrspec
Specifies attribute that will be set (or changed if it exists) for any pruned node. attrspec is a string of the form attr=value.
EXAMPLES
An input graph test.dot of the form
digraph DG {
A -> B;
A -> C;
B -> D;
B -> E;
}
, processed by the command
prune -n B test.dot
would produce the following output (the actual code might be formatted in a slightly different way).
digraph DG {
A -> B;
A -> C;
}
Another input graph test.dot of the form
digraph DG {
A -> B;
A -> C;
B -> D;
B -> E;
C -> E;
}
(note the additional edge from C to E ), processed by the command
prune -n B -N color=red test.dot
results in
digraph DG {
B [color=red];
A -> B;
A -> C;
C -> E;
}
Node E has not been removed since its second parent C is not being pruned.
EXIT STATUS
prune returns 0 on successful completion. It returns 1 if an error occurs.
SEE ALSO dot(1), gvpr(1)AUTHOR
Marcus Harnisch <marcus.harnisch@gmx.net>
prune(1)