Try: diff –brief –recursive dir1/ dir2/ Or alternatively, with the short flags -qr: diff -qr dir1/ dir2/ If you also want to see differences for files that may not exist in either directory: diff –brief –recursive –new-file dir1/ dir2/ # with long options diff -qrN dir1/ dir2/ # with short flag aliases
xargs will let you cat all the files together before passing them to wc, like you asked: git ls-files | xargs cat | wc -l But skipping the intermediate cat gives you more information and is probably better: git ls-files | xargs wc -l
You can use Parameter Expansion to do this. If a is constant, the following parameter expansion performs substring extraction: b=${a:12:5} where 12 is the offset (zero-based) and 5 is the length If the underscores around the digits are the only ones in the input, you can strip off the prefix and suffix (respectively) in two … Read more
Certainly, how it’s done depends on your shell. In Bash, you can use single quotes around the message and can just leave the quote open, which will make Bash prompt for another line, until you close the quote. Like this: git commit -m ‘Message goes here’ Alternatively, you can use a “here document” (also known … Read more
Use the sleep command. Example: sleep .5 # Waits 0.5 second. sleep 5 # Waits 5 seconds. sleep 5s # Waits 5 seconds. sleep 5m # Waits 5 minutes. sleep 5h # Waits 5 hours. sleep 5d # Waits 5 days. One can also employ decimals when specifying a time unit; e.g. sleep 1.5s
From help set : -e Exit immediately if a command exits with a non-zero status. But it’s considered bad practice by some (bash FAQ and irc freenode #bash FAQ authors). It’s recommended to use: trap ‘do_something’ ERR to run do_something function when errors occur. See http://mywiki.wooledge.org/BashFAQ/105
You can have multiple exclude options for tar so $ tar –exclude=”./folder” –exclude=”./upload/folder2″ -zcvf /backup/filename.tgz . etc will work. Make sure to put –exclude before the source and destination items.
Bit of awk should do it? awk ‘{s+=$1} END {print s}’ mydatafile Note: some versions of awk have some odd behaviours if you are going to be adding anything exceeding 2^31 (2147483647). See comments for more background. One suggestion is to use printf rather than print: awk ‘{s+=$1} END {printf “%.0f”, s}’ mydatafile
There are a couple of different ways you can do this: Make the other script executable, add the #!/bin/bash line at the top, and the path where the file is to the $PATH environment variable. Then you can call it as a normal command; Or call it with the source command (alias is .), like … Read more
Using the Job Control of bash to send the process into the background: Ctrl+Z to stop (pause) the program and get back to the shell. bg to run it in the background. disown -h [job-spec] where [job-spec] is the job number (like %1 for the first running job; find about your number with the jobs … Read more