skip="$n" 'NR > skip {print}' "$file_path" # 或者使用tail和head组合 tail -n +$(($n+1)) "$file_path" # 或者使用while循环和read命令 { # 跳过前n行 for ((i=0; i<n; i++)); do read -r _ done # 处理剩余的行 while read -r line; do echo "$line" done } < "$file...
bash 历史记录记录了用户在 Linux 命令行上执行的所有命令。这允许你使用键盘的上up arrow或者键盘的下d...
for file in "$source_dir"/*; do if [ -f "$file" ]; then tar -czf "${file}.tar.gz" "$file" fi done echo "文件已压缩" ``` 7. 统计某个文件中特定字符串出现的次数: ```bash #!/bin/bash file="/path/to/file" search_string="example" count=0 while read -r line; do if ...
How to delete or get the number in the tail from a string in shell script? How to get the script’s own path in sourced Bash script? How to search history commands very effectively in bash shell command line? How to process a file line by line in Bash?
$!ba: This constructs a loop that branches back to labelaunless it’s the last line. s/\n//g: This is the substitution command (s), which replaces newline characters (\n) with nothing (an empty string). Thegflag is used to replace all occurrences on each line. ...
echo "print each param from \"\$*\"" for var in "$*" do echo "$var" done echo "print each param from \"\$@\"" for var in "$@" do echo "$var" done 执行./test.sh "a" "b" "c" "d",看到下面的结果: $*= a b c d ...
In your build or test suites While ShellCheck is mostly intended for interactive use, it can easily be added to builds or test suites. It makes canonical use of exit codes, so you can just add ashellcheckcommand as part of the process. ...
-e script, --expression=script add the script to the commands to be executed-n, --quiet, --silent suppress automatic printing of pattern space=Print the current line number. p Print the current pattern space. cv@cv:~/myfiles$sed-n'3,5p'test.txt #example-1SYNOPSISsed[OPTION]... {scr...
language used in Linux systems that allows users to interact with system through command-line interface. Bash offers several string manipulation capabilities that can help users manipulate and process text strings. In this article, we will explore various techniques available for string manipulation in ...
# for read each line echo"OS distribution line no.$n:$line" n=$((n+1)) done<$filename Save the file with a name‘OSinfo.sh’and type the following command on the terminal to run the above bash script. $bashOSinfo.sh Now, run the cat command to view the original file content....