unix - Bash Scripting - AWK with Delimiter? -


i've got header in text file looks this:

first-name:last-name:city:home-phone:cell-phone

what need display last-name , cell-phone number of each entry.

i'm new bash scripting, , i'm not sure can use this. told awk useful, after looking around, still don't quite understand how use it.

specify field separator -f:

awk -f":" '{print $2, $5}'

-

Comments

Post a Comment

Popular posts from this blog

go - Idiomatic way to handle template errors in golang -

say have html/template following: <html> <body> <p>{{somefunc .somedata}}</p> </body> and somefunc returns error. there idiomatic way deal this? if write directly responsewriter , status code 200 has been written before encounter error. var tmpl *template.template func handler(w http.responsewriter, r *http.request) { err := tmpl.execute(w, data) // "<html><body><p>" has been written... // err? } preferably return status code 400 or such, can't see way if use template.execute directly on responsewriter . there i'm missing? since template engine generates output on-the-fly, parts of template preceding somefunc call sent output. , if output not buffered, (along http 200 status) may sent. you can't that. what can perform check before call template.execute() . in trivial case should enough call somefunc() , check return value. if choose path , return value of somefunc() c...
Read more

python - Creating a new virtualenv gives a permissions error -

i'm getting following output when running virtualenv newvenv . traceback (most recent call last): file "/usr/local/bin/virtualenv", line 5, in <module> pkg_resources import load_entry_point file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2727, in <module> add_activation_listener(lambda dist: dist.activate()) file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 700, in subscribe callback(dist) file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2727, in <lambda> add_activation_listener(lambda dist: dist.activate()) file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2227, in activate self.insert_on(path) file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2334, in insert_on self.check_version_conflict() file "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2373, in check_version_conflict...
Read more

c# - What is a NullReferenceException, and how do I fix it? -

i have code , when executes, throws nullreferenceexception , saying: object reference not set instance of object. what mean, , can fix error? what cause? bottom line you trying use null (or nothing in vb.net). means either set null , or never set @ all. like else, null gets passed around. if null in method "a", method "b" passed null to method "a". the rest of article goes more detail , shows mistakes many programmers make can lead nullreferenceexception . more specifically the runtime throwing nullreferenceexception always means same thing: trying use reference, , reference not initialized (or once initialized, no longer initialized). this means reference null , , cannot access members (such methods) through null reference. simplest case: string foo = null; foo.toupper(); this throw nullreferenceexception @ second line because can't call instance method toupper() on string reference pointing null ....
Read more