- How to find lines matching a pattern and delete them? sed -i '/^HERE IT IS/d' WARNING: Its better to take a backup when using -i switch of sed: sed -i.bak '/^HERE IT IS/d'
How to find a line 'not-matching' a pattern and delete them sed -i '/^HERE IT IS/!d' WARNING: Its better to take a backup when using -i switch of sed: sed -i.bak '/^HERE IT IS/!d'
Delete first line for all files. sed -i '1d' * Delete last (any) character from all line in all files. sed -i 's/.$//' * Delete last ': from all line in all files. sed -i 's/:$//' *
VIM: http:https://vim.wikia.com/wiki/Highlight_unwanted_spaces
" Show all tabs: /\t
" Show trailing whitespace: /\s+$
" Show trailing whitespace only after some text (ignores blank lines): /\S\zs\s+$
" Show spaces before a tab: / +\ze\t
Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.144.15.100 128.0.0.0 UG 1 0 0 ppp0 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
That's a route to 0.0.0.0/1 (NOT a default route, a default route is 0.0.0.0/0) pointing to 10.144.15.100 which uses ppp0, plus a default route pointing to 192.168.1.1 which goes out eth0
ip route del 0.0.0.0/1 via 10.144.15.100 ip route del default via 192.168.1.1