function callingSomeFunction () { local -n someArray=$1 # also ${1:?} to make the parameter mandatory. for value in "${someArray[@]}" # Nice! do : done } callingSomeFunction myArray # No $ in front of the argument. You pass by name, not expansion / value. 据我所知,发布的...
Linux treats everything as a file and it is not mandatory to add extensions(.shor.bash) for your script. Though it is not mandatory, I would suggest you add an extension to your shell script, so you can come to know what type of file you are dealing with. When creating files in Lin...
usageexit$EXIT_BAD_ARGS;;esacdone# Remove the optional arguments parsed above.shift$((OPTIND-1))# Check if the number of mandatory parameters# provided is as expectedif["$#"-ne"1"];thenecho"Document file name is missing! ($#arguments provided)">&2 usageexit$EXIT_BAD_ARGSfi[$VERBOSITY ...
function argumentsin Bash are treated aspositional parameters($1, $2..$9, ${10}, ${11}, and so on). This is no surprise considering howgetoptsworks. Do not use parentheses to call a function
$ cat flag-positional-param.sh while getopts u:a:f: flag do case "${flag}" in u) username=${OPTARG};; a) age=${OPTARG};; f) fullname=${OPTARG};; esac done # Now handle positional arguments shift $((OPTIND - 1)) param1=$1 # First positional argument param2=$2 # Second ...
" echo # just a blank line echo both forms do work: \${integer_array[i]} : ${integer_array[i]} echo and this too: \${integer_array[\$i]} : ${integer_array[$i]} GoalKicker.com – Bash Notes for Professionals 51 Chapter 14: Functions Section 14.1: Functions with arguments In ...
In the first column, checkbox or radio buttons can be created. To create a radio button, use--radiolistflag and to create a checkbox, use--checklistflag. When creating a radio list, it is mandatory to addTRUEorFALSEkeywords as the first value for your row. True will select the radiolis...
使用短/长选项和参数的getopts 适用于所有组合,eG: foobar -f –bar foobar –foo -b foobar -bf –bar –foobar foobar -fbFBAshorty –bar -FB –arguments = longhorn foobar -fA“text shorty”-B –arguments =“text longhorn” ...