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Merge / convert multiple PDF files into one PDF
...putFile=output.pdf file1.pdf file2.pdf file3.pdf ...
This in turn can be piped directly into pdf2ps.
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libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...是一些使用示例，由于部分代码是来源网上，原作者已经无法考证，所以如有原作者看到，可以告诉我，我给注明~
另：文末附有所有代码的打包下载，均在suse 10下编译运行通过
1.下载文件到本地
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Aborting a shell script if any command returns a non-zero value?
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Bear in mind that set -e sometimes is not enough, specially if you have pipes.
For example, suppose you have this script
#!/bin/bash
set -e
./configure > configure.log
make
... which works as expected: an error in configure aborts the execution.
Tomorrow you make a seemingly trivial ch...
What's the difference between a file descriptor and file pointer?
...tc.
File descriptor API is low-level, so it allows to work with sockets, pipes, memory-mapped files (and regular files, of course).
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Extract substring in Bash
... The problem is that the input is dynamic since I also use the pipe to get it so it's basically. git log --oneline | head -1 | cut -c 9-(end -1)
– Niklas
Jul 31 '15 at 18:19
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Profiling Vim startup time
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You could run vim -V, pipe the output through a utility that adds timestamps and analyze the output. This command lines does this, e.g.:
vim -V 2>&1 | perl -MTime::HiRes=time -ne 'print time, ": ", $_' | tee vilog
You might have to blind...
How could the UNIX sort command sort a very large file?
...command line
if [ $# != 2 ]
then
usage
exit
fi
pv $1 | parallel --pipe --files sort -S512M | parallel -Xj1 sort -S1024M -m {} ';' rm {} > $2
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How do I use Ruby for shell scripting?
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Backticks do string interpolation:
blah = 'lib'
`touch #{blah}`
You can pipe inside Ruby, too. It's a link to my blog, but it links back here so it's okay :) There are probably more advanced things out there on this topic.
As other people noted, if you want to get serious there is Rush: not just ...
Can I get “&&” or “-and” to work in PowerShell?
&& is notoriously hard to search for on Google Search, but the best I've found is this article which says to use -and .
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How to create an empty file at the command line in Windows?
... 0 filename
1 file(s) 0 bytes
The "<nul" pipes a nul response to the set/p command, which will cause the
variable used to remain unchanged. As usual with set/p, the string to the
right of the equal sign is displayed as a prompt with no CRLF.
Since here the "s...