so thatreadis forced to read everything it's fed. And we feedreadwith exactly the content of the variablein, with no trailing newline thanks toprintf. Note that's we're also putting the delimiter inprintfto ensure that the string passed toreadhas a trailing delimiter. Without it...
_upword() #@ USAGE: upword STRING { local word=$1 while [ -n "$word" ] ## loop until nothing is left in $word do to_upper "$word" _UPWORD=$_UPWORD$_UPR word=${word#?} ## remove the first character from $word done } upword() { _upword "$@" printf "%s\n" "$_UP...
叙述时传回真,否则传回伪): string string 不为空白字串 -n string string 的长度大於 0 -z string string 的长度等於 0 string1=string2 string1 等於 string2 string1!=string2 string1 不等於 string2 int1 -gt int2 int1 大於 int2 int1 -ge int2 int1 大於等於 int2 int1 -eq int2 ...
> Hello world HERE <-- Not by itself on a separate line -> not considered end of string > This is a test > HERE <-- Leading space, so not considered end of string > and a new line > HERE <-- Now we have the end of the string 首页 滇ICP备14007358号-3 • © 2021 专注...
Split a string on a delimiterCAVEAT: Requires bash 4+This is an alternative to cut, awk and other tools.Example Function:split() { # Usage: split "string" "delimiter" IFS=$'\n' read -d "" -ra arr <<< "${1//$2/$'\n'}" printf '%s\n' "${arr[@]}" }...
parameters are separated by spaces. If IFS is null, the parameters are joined without intervening separators. @ Expands to the positional parameters, starting from one. When the expansion occurs within double quotes, each parameter expands to a separate word. That is, "$@" is ...
Split a string on a delimiterThis is an alternative to cut, awk and other tools.Example Function:split() { # Usage: split "string" "delimiter" IFS=$'\n' read -d "" -ra arr <<< "${1//$2/$'\n'}" printf '%s\n' "${arr[@]}" } ...
#Input a string value echo“Enter a string value” readtext # Set the delimiter IFS=' ' #Split the value of $text into an array based on space delimiter read-aarr<<<"$text" # Print each value of the array forvaluein"${arr[@]}"; ...
It uses the whitespace as a delimiter (by default) somake sure to separate two keywords by whitespaceso bash can differentiate between two elements and store them in an array with different indexes. The syntax to read into an array is pretty simple. All you have to do is use the read co...
If IFS is unset, the parameters are separated by spaces. If IFS is null, the parameters are joined without intervening separators. The @ Expands to the positional parameters, starting from one. When the expansion occurs within double quotes, each parameter expands to a separate word. That is,...