<div>
Always the same? cut can be easier.<br />
<br />
File &quot;input&quot; looks like:<br />

<pre><code id="code-20-39337297-1">243299384892  firstname lastname
324324324323 firstname lastname</code></pre>
<br />
Run this one<br />

<pre><code id="code-20-39337297-2">cut -f 1 -d ' ' input
243299384892
324324324323</code></pre>
</div>


<div>
Always numbers? Try this:<br />
<br />
sed 's/$^[0-9]*$.*$/\1/' inputfile<br />
<br />
or<br />
<br />
tr -d '[:alpha:][:blank:]' &lt;&nbsp;inputfile
</div>


<div>
A loop using only shell builtins:<br />
<br />
while read line; do echo ${line%% *}; done &lt;&nbsp;inputfile
</div>


<div>
And to take your question literally (i.e. delete the second <b>line</b> of a file):<br />
<br />
sed '2d' &nbsp;inputfile<br />
<br />
awk 'NR!=2 {print}' inputfile
</div>


<div>
<div class="content wysiwyg-content">
How do i use sed or grep or a linux command to omit the second line<br />
<br />
for example i have a file<br />
<br />
243299384892 &nbsp;firstname lastname<br />
324324324323 firstname lastname<br />
<br />
<br />
I want to run a command so i get the the numbers and omit the firstname lastname?<br />
<br />
Thank you
</div>
</div>


How do i use sed or grep or a linux command to omit the second line

for example i have a file

243299384892  firstname lastname
324324324323 firstname lastname


I want to run a command so i get the the numbers and omit the firstname lastname?

Thank you

Always the same? cut can be easier.

File &quot;input&quot; looks like:
(CODE)

Run this one
(CODE)

Always numbers? Try this:

sed &#39;s/$^[0-9]*$.*$/\1/&#39; inputfile

or

tr -d &#39;[:alpha:][:blank:]&#39; &lt; inputfile

A loop using only shell builtins:

while read line; do echo ${line%% *}; done &lt; inputfile

And to take your question literally (i.e. delete the second line of a file):

sed &#39;2d&#39;  inputfile

awk &#39;NR!=2 {print}&#39; inputfile

How do i use sed or grep or a linux command to omit the second line

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