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bash_mix [2010/11/11 13:31] Jan Stancek |
bash_mix [2011/09/20 20:43] (current) |
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| + | \\ | ||
| + | http://tldp.org/LDP/abs/html/\\ | ||
| + | \\ | ||
| + | <code> | ||
| + | echo ${PATH#*:} # Parameter substitution, not a comment. | ||
| + | echo $(( 2#101011 )) # Base conversion, not a comment. | ||
| + | echo ${param1:-DEFAULT} | ||
| + | echo "whatever" | cat - | ||
| + | file - | ||
| + | let "z = 5 % 3" | ||
| + | echo ~+ | ||
| + | a="23456"; echo ${a/23/BB} | ||
| + | echo $(ls -l) | ||
| + | type '[' | ||
| + | type '[[' | ||
| + | echo $((RANDOM%16)) | ||
| + | str="123abc"; echo ${#str}; expr length $str; expr "$str" : '.*' | ||
| + | expr match "$string" '$substring' | ||
| + | expr "$string" : '$substring' | ||
| + | echo ${str:2:3} | ||
| + | echo ${*:2}; echo ${@:2} | ||
| + | expr match "$string" '\($substring\)' | ||
| + | expr "$string" : '\($substring\)' | ||
| + | ${string#substring} | ||
| + | ${string##substring} | ||
| + | ${string%substring} | ||
| + | ${string%%substring} | ||
| + | ${string/substring/replacement} | ||
| + | ${string//substring/replacement} | ||
| + | ${string/#substring/replacement} | ||
| + | ${string/%substring/replacement} | ||
| + | echo ${parameter-default}; ${parameter:-default} | ||
| + | ${parameter=default}; ${parameter:=default} | ||
| + | ${parameter?err_msg}, ${parameter:?err_msg} | ||
| + | ${var#Pattern}, ${var##Pattern} | ||
| + | ${var%Pattern}, ${var%%Pattern} | ||
| + | |||
| + | |||
| + | |||
| + | </code> | ||