bash - Count number of occurrences of token in a file -

-

i have server access log, timestamps of each http request, i'd obtain count of number of requests @ each second. using sed, , cut -c, far i've managed cut file down timestamps, such as:

22-sep-2008 20:00:21 +0000
22-sep-2008 20:00:22 +0000
22-sep-2008 20:00:22 +0000
22-sep-2008 20:00:22 +0000
22-sep-2008 20:00:24 +0000
22-sep-2008 20:00:24 +0000

what i'd love number of times each unique timestamp appears in file. example, above example, i'd output looks like:

22-sep-2008 20:00:21 +0000: 1
22-sep-2008 20:00:22 +0000: 3
22-sep-2008 20:00:24 +0000: 2

i've used sort -u filter list of timestamps down list of unique tokens, hoping use grep like

grep -c -f <file containing patterns> <file>

but produces single line of grand total of matching lines.

i know can done in single line, stringing few utilities ... can't think of which. know?

i think you're looking for

uniq --count

-c, --count prefix lines number of occurrences


Comments

Post a Comment

Popular posts from this blog

c++ - How do I get a multi line tooltip in MFC -

-
right now, have tool tip pops when hover on edit box. problem tool tip contains multiple error messages , in 1 long line. need have each error message on own line. error messages contained in cstring new line seperating them. my existing code below. bool ontooltiptext(uint, nmhdr* pnmhdr, lresult* presult) { assert(pnmhdr->code == ttn_needtexta || pnmhdr->code == ttn_needtextw); // need handle both ansi , unicode versions of message tooltiptexta* pttta = (tooltiptexta*)pnmhdr; tooltiptextw* ptttw = (tooltiptextw*)pnmhdr; // tchar szfulltext[256]; cstring strtiptext=_t(""); uint nid = pnmhdr->idfrom; if (pnmhdr->code == ttn_needtexta && (pttta->uflags & ttf_idishwnd) || pnmhdr->code == ttn_needtextw && (ptttw->uflags & ttf_idishwnd)) { // idfrom hwnd of tool nid = ::getdlgctrlid((hwnd)nid); } //m_errprojaccel[ch] contains 1 or more error messages each...
Read more

asp.net - In javascript how to find the height and width -

-
i having .aspx , masterpage page. in masterpage loading aspx page . in aspx page design using generating table structure using code-behind server in javascript how find height , width . regards, kumar if you're looking table height , width, should it var tbl = document.getelementbyid('tbldemo'); alert(tbl.offsetwidth + '\n' + tbl.offsetheight);
Read more

c# - DataTable to EnumerableRowCollection -

-
i have datatable according client requirement can contain invalid date "00/00/1999",null,empty string.(typed datset) when collect them enumerables wish convert of invalid forms empty string. (i.e) enumerablerowcollection<datarow> query = order in _table.asenumerable() select new { orderdate= string.isnullorempty(convert.tostring(order.field<datetime>("orderdate")) || (how check date invalid date) ? string.empty : order.field<datetime>("orderdate") } how check whether date valid date or not? datetime.tryparse...like given current code: datetime date; enumerablerowcollection<datarow> query = order in _table.asenumerable() select new { orderdate= string.isnullorempty(convert.tostring(order.field<datetime>("orderdate")) || !datetime.tryparse(convert.tostring(order.field<datetime...
Read more