echo "All the command-line parameters are: "$*"" if [ $# -lt "$MINPARAMS" ] then echo echo "This script needs at least $MINPARAMS command-line arguments!" fi echo exit 0 运行代码: bash test30.sh 1 2 10 The name of this script is "test.sh". The name of this script is "t...
{ # ignore first line IFS= read -r _ # read each line and split on , while IFS=, read -r file id1 id2; do # execute the command command -base "$file" -tp "$id1" -tp "$id2" -all done } < my_ids.csv 读https://mywiki.wooledge.org/BashFAQ/001。用https://shellcheck.n...
# 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. for elemen...
Hopefully, these examples have demonstrated the power of aforloop at the Bash command line. You really can save a lot of time and perform tasks in a less error-prone way with loops. Just be careful. Your loops will do what you ask them to, even if you ask them to do something destr...
How to do a do-while loop in bash? How to create an infinite loop in bash? How to find if a number is odd or even in bash? How to iterate over a bash array? How to loop over each line of a file? How to iterate over a list of files? How to use numbers with leading zeros...
Exit status 2 appears when there's a permissions problem or a missing keyword in a command or script. A missing keyword example is forgetting to add adonein a script'sdoloop. The best method for script debugging with this exit status is to issue your command in an interactive shell to see...
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 ...
Bash For Loop Syntax Basically, the simplest for loop syntax repeats the occurrence of a set of a variable. The bash sequence typically looks like this: for VARIABLE in 1 2 3 4 5 .. N Perform the below command: command1 command2 commandN done ...
在Bash脚本,有3种类型loops:for loop,while loop, 和until loop. 这三个用于迭代值列表并执行一组给定的命令。 Bash For 循环语法 for loop遍历一系列值并执行一组命令。 For loop采用以下语法: forvariable_name in value1 value2 value3..ndocommand1 ...
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.com/ssh-execute-remote-command-script-linux/ https://wangchujiang...