[ STRING1 < STRING2 ] 如果“STRING1” sorts before “STRING2” lexicographically in the current locale则为真。 [ STRING1 > STRING2 ] 如果“STRING1” sorts after “STRING2” lexicographically in the current locale则为真。 [ ARG1 OP ARG2 ] “OP” is one of -eq, -ne, -lt, -le, -...
在Oracle数据库中，日志文件是用于数据恢复和事务重演的，这个日志文件对于Oracle数据库的作用是致命的，从...
$find ./ -name"etl_task_resource*.sql"| xargs grep -Hni --color=auto'create database'./etl_task_resource-data.mysql.10.0.11.138.202104012104.bak.sql:22:CREATE DATABASE /*!32312 IF NOT EXISTS*/ `ETL_TASK_SOURCE_234` /*!40100 DEFAULT CHARACTER SET utf8 */; 列出在当前路径下查找出现...
- name: Write-Host "Dir exists" - shell: powershell - require: - module: check-dir-existsshow-dir-not-exist: cmd.run: - name: Write-Host "Dir not exists" - shell: powershell - onfail: - module: check-dir-exists 或者将返回值True/False存储在变量中,并将匹配条件存储在if/else语句中...
matching lines Another hack through regex, grep -P '^(?!Nov 06)' file Regex Explanation: ^ Asserts that we are at the start. (?!Nov 06) This negative lookahead asserts that there isn't a string Nov 06 following the line start. If yes, then match the boundary exists before first …...
grepUse command to match the starting stringin Linux We can usegrepthe command to display all the lines in a file that start with a specific string pattern. We can^do this by using a regular expression pattern. ^Specifies that the match should be^lines starting with the preceding pattern....
1.2 String(字符串) 数据结构 常用命令 1.3List(列表) 数据结构 常用命令 1.4 Set(集合) 数据结构 常用命令 1.5 Zset(sorted set) 有序集合 数据结构 常用命令 1.6 Hash(哈希) 数据结构 常用命令 1.7 Bitmaps 数据结构 常用命令 1.8 HyperLogLog 常用命令 1.9 Geospatial 作用 常用命令 2 Redis事务与锁机制 2.1...
5.4. Substituting Matched String With Replacement The sed‘s substitute command has the following structure: 's/pattern/replacement/' When there is a match on a line for pattern, sed will substitute it with replacement. For example, if we want to substitute the word ERROR in our log.txt wit...
If no directory exists, the file itself is selected to search. Press Shift-TAB to go back up one level. Press CTRL-] to toggle colors on and off. Normally ugrep in query mode uses colors and other markup to highlight results. When colors are turned off, selected results are also not...
if($allmatches.count-gt0) {$allmatches|foreach{"We found '$($_.Value)'"}} else {"Sorry, no matches"} We found 'CREATE TABLE /* it could have comments */ [dbo].[discounts]' With just a string, it is easy to try things out by altering the code to ...