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How to get “wc -l” to print just the number of lines without file name?
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How about
wc -l file.txt | cut -d' ' -f1
i.e. pipe the output of wc into cut (where delimiters are spaces and pick just the first field)
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How to spawn a process and capture its STDOUT in .NET? [duplicate]
I need to spawn a child process that is a console application, and capture its output.
9 Answers
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Find and Replace text in the entire table using a MySQL query
...some url replacements and instead of using slashes as my delimiters I used pipes instead (read this up grymoire.com/Unix/Sed.html). Example: sed -i 's|olddomain.com|http://newdomain.com|g' ./db.sql
– Mike Kormendy
Feb 9 '15 at 4:49
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How to grep and replace
..., separated by nul to protect any special characters in the filename, then pipe those filenames to xargs which is expecting a nul-separated list, but won't do anything if no names are received, and get perl to substitute lines where matches are found.
Add the I switch to grep to ignore binary files...
Java String to SHA1
...nvocation: If you use echo test, the output including a line break will be piped to sha1sum. If you want to hash a plain string without trailing line break, you can use echo -n test | sha1sum. The -n parameter makes echo omitting the line break.
– MrSnrub
Jul 2...
How to copy a file to multiple directories using the gnu cp command
Is it possible to copy a single file to multiple directories using the cp command ?
22 Answers
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In Windows cmd, how do I prompt for user input and use the result in another command?
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Is there a way to pipe the output of the SET command to NIL:, so you can hide the typing? Like if you wanted to do a: set /p id=Enter ID:\r\n set /p pw=Enter Passwd: and didn't want the password text to show in the window, let alone, show in ...
How do I grep recursively?
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If you are going to pipe find through xargs to grep, AND if you are only searching for a fixed string (i.e., not a regex), you might benefit from invoking the grep -F option, so grep won't load the regex engine for each invocation. If there are...
How can I get the current user's username in Bash?
...ne shown seems to be specific to any shell. In fact, why even include the pipe through awk? As far as I can tell, your ps command is everything required to display the owner of the current shell's pid.
– ghoti
Dec 1 '14 at 19:50
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Recursive search and replace in text files on Mac and Linux
... Use a different delimiter. If you're using paths, a colon or pipe would work. 's|SEARCH|REPLACE|g', for example. Our use braces, as in 's{SEARCH}{REPLACE}'.
– dannysauer
Sep 6 '13 at 1:04
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