Trying to add currrent date as the first the first column in the file

Linux and Unix-Like Emergency UNIX and Linux Support
1

Hi Experts,

I am trying to add one variable value as the first value in a file speparated by "" (space) delimiter. Can you please let me know how I can do this using bash script.

Following is my file.

1635 ABCD 3m9ka COMPLETE
0526 AJAY 3m1da COMPLETE
0419 INDIA 3m3zi INCOMPLETE

The variable I want to add as the first column in the file is searchdate=`date "+%d/%m/%Y"`.

In Summary , currrent date should be added as the first the first column in the file.
FYI I am using SUN OS

uname -v
Generic_122300-60

Thanks,
Ajay

2

[LEFT]Hi Ajay,
Below is your answer by sed for date .

#!/bin/bash
  
searchdate=$(date +%d/%m/%Y)
  
sed -i "s|^|  $searchdate |" myfile

[/LEFT]

While number or character you can do directly as below:

sed -i 's/$/ 1000/' myfile

sed -i 's/^/ 1000/' myfile
3

Hi ajaypatil_am,

One way using perl:

$ cat infile
1635 ABCD 3m9ka COMPLETE
0526 AJAY 3m1da COMPLETE
0419 INDIA 3m3zi INCOMPLETE
$ perl -ane 'my ($mday,$mon,$year) = (localtime)[3..5]; $date = sprintf q[%02d/%02d/%4d], ($mday, ++$mon, $year+=1900); printf qq[%s %s\n], $date, qq[@F]' infile
23/04/2012 1635 ABCD 3m9ka COMPLETE
23/04/2012 0526 AJAY 3m1da COMPLETE
23/04/2012 0419 INDIA 3m3zi INCOMPLETE
5 
 
searchdate=$(date "+%d/%m/%Y")
while read line
do
echo "$searchdate $line" >> output.txt
done  < input.txt