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--- bash:how_to:start [2018/08/02 22:41]
Rob Stroess working on it, lots still to come ...
+++ — (current)
@@ Line 1: / Line 1: @@
-===== bash: "How To"=====
-^operation^what^code^example using:\\ export TST='abcabcaa'^result from \\ abcabcaa^
-|remove|first occurence of characters '__xyz__' in string|STR=${STR/'__xyz__'}|echo ${TST/'bc'}|aabcaa|
-|:::|all characters '__xyz__' in string|STR=${STR%%//%%'__xyz__'}|echo ${TST%%//%%'bc'}|aaaa|
-|:::|characters '__xyz__' at end of string|STR=${STR/%__x__}|echo ${TST%'bcaa'}|abca|
-|:::|first __n__ characters|STR=${STR:__n__}|echo ${TST:2}|cabcaa|
-|:::|last __n__ characters|STR=${STR:-__n__}|echo ${TST::-3}|abcab|
-|extract|all characters after position __n__|STR=${STR:__n__}|echo ${TST:1}|bcabcaa|
-|:::|__m__ characters after position __n__|STR=${STR:__n__:__m__}|echo ${TST:1:5}|bcabc|
-|:::|characters after position __n__ until end of string minus __m__|STR=${STR:__n__:-__m__}|echo ${TST:1:-1}|bcabca|

on the occasion of the current invasion of Russia in Ukraine