IFS=$SAVEIFS # Restore IFS for ((j=0;j<4;j+=1)); do printf "Current is line: $j. \n" printf "%s \n" "${names[$j]}" done 参考资料 === https://linuxconfig.org/bash-printf-syntax-basics-with-examples https://linuxhint.com/bash_loop_list_strings/ https://www.shellhacks....
var = 42# Spaces around = in assignments$foo=42# $ in assignmentsfor$varin*;do...# $ in for loop variablesvar$n="Hello"# Wrong indirect assignmentecho${var$n}# Wrong indirect referencevar=(1, 2, 3)# Comma separated arraysarray=( [index] = value )# Incorrect index initializationech...
替代seq。 # Loop from 0-100 (no variable support). for i in {0..100}; do printf '%s\n' "$i" done 1. 2. 3. 4. 循环遍历可变数字范围 替代seq。 # Loop from 0-VAR. VAR=50 for ((i=0;i<=VAR;i++)); do printf '%s\n' "$i" done 1. 2. 3. 4. 5. 循环数组 arr=(...
替代seq。 # Loop from 0-100 (no variable support). for i in {0..100}; do printf '%s\n' "$i" done 循环遍历可变数字范围 替代seq。 # Loop from 0-VAR. VAR=50 for ((i=0;i<=VAR;i++)); do printf '%s\n' "$i" done 循环数组 arr=(apples oranges tomatoes) # Just elements....
Running for loop from bash shell command line: $ for f in $( ls /var/ ); do echo $f; done 1. 2. 3. 4. 5. 6. 7. 8. 12.2. Bash while loop #!/bin/bashCOUNT=6 # bash while loop while [ $COUNT -gt 0 ]; do echo Value of count is: $COUNT ...
Also, we can write for loop in one line, but in this case there needs to be a semicolon before do, like below:for i in {1..5}; do echo $i; doneBy the way, if for..in..do seems a little bit weird to you, you can also write for in C-like style such as:...
The following example uses a for loop to print all the days of the week:#!/bin/bashfor days in Monday Tuesday Wednesday Thursday Friday Saturday Sundaydoecho “Day: $days”doneOn line 2, “days” automatically becomes a variable, with the values being the day names that follow. Then, ...
# Loop from 0-100 (no variable support).foriin{0..100};doprintf'%s\n'"$i"done 循环遍历可变数字范围 替代seq。 # Loop from 0-VAR.VAR=50for((i=0;i<=VAR;i++));doprintf'%s\n'"$i"done 循环数组 arr=(apples oranges tomatoes)# Just elements.forelementin"${arr[@]}";doprintf'%s...
Also, we can write for loop in one line, but in this case there needs to be a semicolon before do, like below:for i in {1..5}; do echo $i; doneBy the way, if for..in..do seems a little bit weird to you, you can also write for in C-like style such as:...
continue [n] 復位到外層 for, while, until,或 select 循環的下一次開始。如果指定了 n, 復位到向外第 n 層循環的開 始。 n 必須≥ 1。如果 n 比外部循環的層數要多,將復位到最外層的循環 (``top-level'' loop,頂層循 環)。 返回值是 0,除非執行 continue 時,shell 不是在循環之中。 declare [...