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Top Forums UNIX for Dummies Questions & Answers head command wont work on MF file Post 302106568 by alfredo123 on Friday 9th of February 2007 02:55:31 PM
Old 02-09-2007
When I do the file command, below is the output:

Code:
$ file filename.dat
filename.dat: ascii text

So the file is a plain text file and it does not contain any non printable characters. The thing that concerns me is why is the tail command working fine and the head command would not work.

Also a grep command would not work on the file.
 

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STRUCT 
CFG80211_BEAC(9) Actions and configuration STRUCT CFG80211_BEAC(9) NAME
struct_cfg80211_beacon_data - beacon data SYNOPSIS
struct cfg80211_beacon_data { const u8 * head; const u8 * tail; const u8 * beacon_ies; const u8 * proberesp_ies; const u8 * assocresp_ies; const u8 * probe_resp; size_t head_len; size_t tail_len; size_t beacon_ies_len; size_t proberesp_ies_len; size_t assocresp_ies_len; size_t probe_resp_len; }; MEMBERS
head head portion of beacon (before TIM IE) or NULL if not changed tail tail portion of beacon (after TIM IE) or NULL if not changed beacon_ies extra information element(s) to add into Beacon frames or NULL proberesp_ies extra information element(s) to add into Probe Response frames or NULL assocresp_ies extra information element(s) to add into (Re)Association Response frames or NULL probe_resp probe response template (AP mode only) head_len length of head tail_len length of tail beacon_ies_len length of beacon_ies in octets proberesp_ies_len length of proberesp_ies in octets assocresp_ies_len length of assocresp_ies in octets probe_resp_len length of probe response template (probe_resp) AUTHOR
Johannes Berg <johannes@sipsolutions.net> Author. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 STRUCT CFG80211_BEAC(9)
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