sed . regular expressions

commandline session $ 4.1.5 1 270—> echo “fastest 1000 cars” | sed “s/1000/2000/” fastest 2000 cars $ 4.1.5 2 271—> echo “fastest 1000 cars” | sed “s/1*/2000/” 2000fastest 1000 cars $ 4.1.5 3 272—> $ 4.1.5 3 272—> echo “fastest 1000 cars” | sed “s/2*/2000/” 2000fastest 1000 cars $ 4.1.5 4 273—> echo “fastest 1000 …

debug : using iw command ( netlink debugging )

ABOUT Netlink The Netlink socket family is a Linux kernel interface used for inter-process communication (IPC) between both the kernel and userspace processes, and between different userspace processes, in a way similar to the Unix domain sockets. Similarly to the Unix domain sockets, and unlike INET sockets, Netlink communication cannot traverse host boundaries. However, while …

$_ indicates exactly the last parameter of your last command (GNU Bash)

commandline session $ 4.2.29 8 507—> ls Algorithms bookmark bugs-general debian-howtos firewall kernel linux README beautifulwork books config-files Docs https: language ovlfose $ 4.2.29 9 508—> ls $_ ls: cannot access ls: No such file or directory $ 4.2.29 10 509—> ls vm ls: cannot access vm: No such file or directory $ 4.2.29 11 …

debug : Wireless LAN with Realtek and Dlink

things i looked BIOS checkup related to ethernet controller Details of network and network card using iwlist command Security Mechanism Supported By Network Card and Router Looked for Matching the standards Like security mechanisms related. Looked for matching standards in Wireless like IEEE 802.11bg Debian Research These Notes Comes With NO WARRANTY Using iwlist command …

findup . find dUPlicate files.

commandline session $ 4.1.5 3 249—> cd $ 4.1.5 4 250—> $ 4.1.5 4 250—> cd .mozilla/ $ 4.1.5 5 251—> /usr/share/fslint/fslint/findup firefox/625qvjz5.default/bookmarkbackups/bookmarks-2012-08-09.json firefox/625qvjz5.default/bookmarkbackups/bookmarks-2012-08-10.json firefox/625qvjz5.default/Cache/B/32/B73FDd01 firefox/625qvjz5.default/blocklist.xml firefox/625qvjz5.default/Cache/2/90/C2EE2d01 firefox/625qvjz5.default/Cache/5/60/BF572d01 firefox/625qvjz5.default/Cache/A/D8/DB996d01 firefox/625qvjz5.default/Cache/B/F2/AFA8Fd01 firefox/625qvjz5.default/Cache/A/FE/A20B7d01 firefox/625qvjz5.default/Cache/B/F3/3B077d01 firefox/625qvjz5.default/Cache/3/F0/215E4d01 firefox/625qvjz5.default/Cache/A/ED/CB4DCd01 firefox/625qvjz5.default/Cache/7/83/3D82Dd01 firefox/625qvjz5.default/Cache/C/E6/E2E3Ad01 firefox/625qvjz5.default/Cache/F/08/7726Dd01 firefox/625qvjz5.default/Cache/6/85/8A7FEd01 firefox/625qvjz5.default/Cache/9/47/C031Dd01 firefox/625qvjz5.default/Cache/5/33/312ACd01 firefox/625qvjz5.default/Cache/B/FA/7E28Bd01 firefox/625qvjz5.default/Cache/E/B6/83C07d01 firefox/625qvjz5.default/Cache/E/C5/0FDC3d01 firefox/625qvjz5.default/Cache/8/E0/AE2A7d01 firefox/625qvjz5.default/Cache/9/2F/5168Ad01 firefox/625qvjz5.default/Cache/2/4F/7E1CCd01 firefox/625qvjz5.default/Cache/A/93/23EA4d01 firefox/625qvjz5.default/Cache/E/33/3377Ad01 firefox/625qvjz5.default/Cache/F/37/510091d01 firefox/625qvjz5.default/Cache/1/71/00FA9d01 firefox/625qvjz5.default/Cache/2/16/736D7d01 firefox/625qvjz5.default/Cache/4/4C/254FFd01 firefox/625qvjz5.default/Cache/A/E7/06BBAd01 firefox/625qvjz5.default/Cache/A/15/E56B7d01 firefox/625qvjz5.default/Cache/E/81/93992d01 …

times – get process times

$times 0m0.348s 0m0.052s 0m0.560s 0m0.112s $ $times 0m0.348s 0m0.052s 0m0.560s 0m0.112s $times 0m0.348s 0m0.052s 0m0.560s 0m0.112s $times 0m0.348s 0m0.052s 0m0.560s 0m0.112s $times 0m0.348s 0m0.052s 0m0.560s 0m0.112s $times 0m0.348s 0m0.052s 0m0.560s 0m0.112s $times 0m0.348s 0m0.052s 0m0.560s 0m0.112s $times 0m0.348s 0m0.052s 0m0.560s 0m0.112s $times 0m0.352s 0m0.052s 0m0.560s 0m0.112s $times 0m0.352s 0m0.052s 0m0.560s 0m0.112s $times 0m0.352s 0m0.052s 0m0.560s …