Bash Remove Character from String Read more → Using perl CommandUse the perl command to remove blank lines and lines with whitespace characters from the specified text file in bash.Use perl Command 1 2 3 4 5 perl -ne 'print if /\S/' file.txt > outFile.txt echo -e "The contents...
In this article, we will explore different ways to remove characters in String in different scenarios such as removing specific characters, removing first
# 设置别名aliasname='command [option] [argument]'# 取消指定的别名设置unaliasname# 列出设置的别名alias# 转义别名aliasrm='rm -i'\rm# 转义别名而使用原始的命令[root@localhost ~]# rm tmp.txtrm: remove regularfile`tmp.txt'? n[root@localhost ~]# \rm tmp.txt # \rm,使用 \ 对别名进行转义 ...
...使用export把PS1输出,以使它可以在子shell中生效,这会造成ROOT用户的也采用此样式 生效.bash_profile . ~/.bash_profile 注意 ...后面需要跟空格 或者使用source命令 source ~/.bash_profile 原因分析-PS1 PS1(“prompt string one” 的简写)是在用户根目录下的.bash_profile...中定义的, 一般.bash_prof...
rm:Remove(删除目录或文件) cat:concatenate连锁 cat file1file2>>file3 把文件1和文件2的内容联合起来放到file3中 insmod:install module,载入模块 ln -s:link -soft创建一个软链接,相当于创建一个快捷方式 mkdir:Make Directory(创建目录) touch:touch ...
# Usage: remove_array_dups "array" declare -A tmp_array for i in "$@"; do [[ $i ]] && IFS=" " tmp_array["${i:- }"]=1 done printf '%s\n' "${!tmp_array[@]}" } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 用法示例: ...
# As a string. "$BASH_VERSION" # As an array. "${BASH_VERSINFO[@]}" 打开用户首选的文本编辑器 "$EDITOR" "$file" # NOTE: This variable may be empty, set a fallback value. "${EDITOR:-vi}" "$file" 获取当前函数的名称 # Current function. ...
--post-data=STRING use the POST method; send STRING as the data --post-file=FILE use the POST method; send contents of FILE --method=HTTPMethod use method "HTTPMethod" in the request --body-data=STRING send STRING as data. --method MUST be set --body-file=FILE send contents of FI...
Add asetgitversionscript to update the version string with git 4年前 shellcheck.1.md doc: update man 2个月前 shellcheck.hs Add extended-analysis directive to toggle DFA 1年前 stack.yaml Update stack resolver 4年前 striptests Strip lines containing "STRIP" from ./striptests ...
lstrip() { # Usage: lstrip "string" "pattern" printf '%s\n' "${1##$2}" }示例用法:$ lstrip "The Quick Brown Fox" "The " Quick Brown Fox在字符串末尾匹配正则并删除示例函数:rstrip() { # Usage: rstrip "string" "pattern" printf '%s\n' "${1%%$2}" }...