my input file contains thousands of lines like below
234A dept of education
9788 dept of commerce
8677 dept of engineering
How do i add a delimeter ':' after FIRST 4 CHARACTERS in a line
234A:dept of education
9788:dept of commerce
8677:dept of engineering (7 Replies)
Hello,
in my script i have this lines of code in a while cycle:
..
let j=i+1
t_prod_$i = `cat myfile.csv | grep world | cut -d ";" -f$j`
let i+=1
...
So if i try an echo $t_prod_$i at the end of the cycle i cannot see
the right value obtained by `cat myfile.csv | grep world |... (5 Replies)
Hi,
I have a variable $ID=40 and I need to build a string like
40 40 40 40 40 40
so repeating ID 'n' times separated by spaces.
Any help?
Thanks
Sarah (2 Replies)
Hi All,
I need to concatenate the values in the array into a variable. Currently the code is :
for (( i=1 ; i <= $minCount ; i++ ))
do
var="${var}""${sample_file}"
done
The output is :
/tmp/1/tmp/2/tmp/3/tmp/4/tmp/5/tmp/6/tmp/7/tmp/8/tmp/9/tmp/10
I need a space between... (1 Reply)
Hello,
Trying to concatenate the following using bourne shell:
# !/bin/bash
# this works in bash shell e.g. get the results I am expecting
fnTmp=C$cindex.$station_0.$station_1.$station_3.$ts.tmp
#
# under !/bin/sh
# the results are not the same
Any assistance would be... (8 Replies)
#! /bin/csh
set tt=12345_UMR_BH452_3_2.txt
set rr=`echo $tt | cut -d_ -f1`
set rr1=welcome
set ff=$rr $rr1
echo $ff
why $ff returned only 12345 and not 12345welcome? thanks (2 Replies)
Hi all, I'm trying to build a variable name automatically through a for loop for a script I'm working on, basically I want to build the variables named: $JVM_HOME0 or $JVM_HOME1 so that I can loop through some file copy/deletes and a server restart once completed. With the code below, I get this... (3 Replies)
Hi there,
I'm writing a basic script where I want to make a string of 2 numeric fields from a file, which I have done, but the behavior is rather confusing.
I have a file of random values such as:
1 2
3 4
5 6
7 8
9 10
and my awk code is:
BEGIN { FS = " " }
{ str = str $1 $2 }
END {... (7 Replies)
Hi,
I was trying to work on a file which had the following data format
1 hi
1 this
1 is
1 john
2 hello
3 test
3 case
the expected output file is the below
1 hi, this, is, john
2 hello
3 test, case
I tried using awk or while read, but I couldnt... (13 Replies)
I have a script which is migrated from AIX to Linux & now while running it is no able to concatenate string values
The string concatenation step under while loop is not displaying desired result
Please find below the piece of code:
while read EXT_FILE ; do
EXT_FILE=$EXT_FILE.ext.sent
echo... (7 Replies)
Discussion started by: PreetArul
7 Replies
LEARN ABOUT DEBIAN
plan9-cat
CAT(1) General Commands Manual CAT(1)NAME
cat, read, nobs - catenate files
SYNOPSIS
cat [ file ... ]
read [ -m ] [ -n nline ] [ file ... ]
nobs [ file ... ]
DESCRIPTION
Cat reads each file in sequence and writes it on the standard output. Thus
cat file
prints a file and
cat file1 file2 >file3
concatenates the first two files and places the result on the third.
If no file is given, cat reads from the standard input. Output is buffered in blocks matching the input.
Read copies to standard output exactly one line from the named file, default standard input. It is useful in interactive rc(1) scripts.
The -m flag causes it to continue reading and writing multiple lines until end of file; -n causes it to read no more than nline lines.
Read always executes a single write for each line of input, which can be helpful when preparing input to programs that expect line-at-a-
time data. It never reads any more data from the input than it prints to the output.
Nobs copies the named files to standard output except that it removes all backspace characters and the characters that precede them. It is
useful to use as $PAGER with the Unix version of man(1) when run inside a win (see acme(1)) window.
SOURCE
/src/cmd/cat.c
/src/cmd/read.c
/bin/nobs
SEE ALSO cp(1)DIAGNOSTICS
Read exits with status eof on end of file or, in the -n case, if it doesn't read nlines lines.
BUGS
Beware of and which destroy input files before reading them.
CAT(1)