Changing the sequence number

Shell Programming and Scripting
1

Hi,

I have a data as follow:

1 400
2 239
3 871
4 219
5 543
6 ...
7 ...
.. ...
.. ...
99 818
100 991

I want to replace the sequence number (column 1) that start from 150. The output should like this:

150 400
151 239
153 871
154 219
155 543
...
...

Can anyone tell me AWK code for this....

Thanks

2 
#!/bin/ksh # or bash
# using ex.:  cat somefile | ./thisscript
while read a b
do
   (( a+=149 ))
   echo "$a $b"
done

---------- Post updated at 06:40 PM ---------- Previous update was at 06:38 PM ----------

Awk:

awk '{print $1+149,$2 }' file
# or only col1 is edited, no need to know number of columns
awk '{$1+=149; print }' file
3 
awk '{$1=$1+149}1' file
4

Thanks kshji & danmero :slight_smile: