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What is your single most favorite command-line trick using Bash? [closed]
...
rename
Example:
$ ls
this_has_text_to_find_1.txt
this_has_text_to_find_2.txt
this_has_text_to_find_3.txt
this_has_text_to_find_4.txt
$ rename 's/text_to_find/been_renamed/' *.txt
$ ls
this_has_been_renamed_1.txt
this_has_been_renamed_2.txt
this_has_been_renamed_3.txt
t...
How to create directories recursively in ruby?
I want to store a file as /a/b/c/d.txt, but I do not know if any of these directories exist and need to recursively create them if necessary.
How can one do this in ruby?
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Copy file remotely with PowerShell
...t's much easier this way.
Copy-Item -Path \\serverb\c$\programs\temp\test.txt -Destination \\servera\c$\programs\temp\test.txt;
By using UNC paths instead of local filesystem paths, you help to
ensure that your script is executable from any client system with
access to those UNC paths. If...
How do you read from stdin?
...;' mode='r' encoding='UTF-8'>
file example
Say you have a file, inputs.txt, we can accept that file and write it back out:
python -c "import sys; sys.stdout.write(sys.stdin.read())" < inputs.txt
Longer answer
Here's a complete, easily replicable demo, using two methods, the builtin function,...
程序员保值的4个秘密 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...处理算法，比如你精通视频编解码算法，比如你精通搜索推荐相关的算法，比如你在模式识别领域有建树……试看谁能挡得住你前进的脚步！
业务
在一个行业内持续积累，对业务的理解到位，积累深厚，你的价值是巨大的...
How to loop through files matching wildcard in batch file
...xample:
echo The file is %0
copy %0.in %0.out
ren %0.out monkeys_are_cool.txt
There might be a better way to do this in one script, but I've always been a bit hazy on how to pull of multiple commands in a single for loop in a batch file.
EDIT: That's fantastic! I had somehow missed the page in ...
技术人员如何创业《一》—— 产品及想法 - 资讯 - 清泛网 - 专注C/C++及内核技术
...如果大家尝试了无数次，还是技术影响整个产品的设计，推荐几个选择：
a、找到互补的合伙人，弥补你的短板。
b、开发技术类产品。
b、回到公司工作继续做技术。
现在大概总结了产品设计的一些经验，后面再总结下我们...
How to find out what group a given user has?
.../\:/\,/g|tr -d ' '|sed -e "s/^/$HOSTNAME,/"> /tmp/"$HOSTNAME"_inventory.txt
sudo cat /etc/sudoers| grep -v "^#"|awk '{print $1}'|grep -v Defaults|sed '/^$/d;s/[[:blank:]]//g'>/tmp/"$HOSTNAME"_sudo.txt
paste -d , /tmp/"$HOSTNAME"_inventory.txt /tmp/"$HOSTNAME"_sudo.txt|sed 's/,[[:blank:]]*$//...
How to return result of a SELECT inside a function in PostgreSQL?
...REATE OR REPLACE FUNCTION word_frequency(_max_tokens int)
RETURNS TABLE (txt text -- also visible as OUT parameter inside function
, cnt bigint
, ratio bigint) AS
$func$
BEGIN
RETURN QUERY
SELECT t.txt
, count(*) AS cnt -- column al...
When to use pip requirements file versus install_requires in setup.py?
...is means you should mirror setup.py install_requires= deps in requirements.txt?
– proppy
Sep 25 '13 at 23:24
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