how to get exit code when using xargs (parallel)
The man page for xargs shows the possible exit status values, however it can only produce a single aggregated exit code, not an exit code per child that it runs. You could try one of these options: Have the process that xargs spawns print its exit code and have the...
How to merge multiple files into single file in given directories
Your files don't end with newlines, and therefor there are no newlines in the output file. You should either make sure your input files end with newlines, or add them in the find command: find /home/DIR1 /home/DIR2 -type f -exec cat {} \; -exec echo \; ...
Find a match followed by another match in a different line and sort the output
If you have GNU sed then you can pipe the output of grep to it. grep -E '(First|Last) Name' file | sed 'N;s/\n/ /' | sort -k8 | sed 's/Last/\nLast/' First Name : cc Last Name : ss First Name : aa Last Name : tt grep -E '(First|Last) Name'...
Search files and run a script on every result
I think a while loop is the best way to handle these situations: while IFS= read -r file do awk '...' <(zcat "$file") done < <(find . -type f -name "*gz") You have a find command that is sent to a while loop. This way, you can process each file...
Using xargs to ssh to multiple hosts, receiving :Name or service not known
echo '1 2' | xargs -d ' ' -I % echo % produces: 1 2 <blank line> whereas echo -n '1 2' | xargs -d ' ' -I % echo % returns: 1 2 i.e. xargs decides to generate one more output entry if the input string is ended by...
How to pipe a list of IDs into a MySQL select statement
IDS=$(cat /path/to/file) IDS=$(echo $IDS | sed 's/\s\s*/,/g') #or IDS=$(echo $IDS | awk '{$1=$1}1' RS= OFS=,) on OSX echo "SELECT * FROM table WHERE id in ($IDS)" | mysql -u uname -p database Line 1 loads the ids into a variable, which allows to replace the line breaks easily in line...
In bash, how to batch show the text of certain line in files?
This should do it find ./ -name results.txt -exec sed '12!d' {} ';' ...
Use Xargs to wait for enter key
Try something like this and just quit the editor when you finish editing each group of files? while IFS= read -r dir; do files=() while IFS= read -r -d '' xmlfile; do files+=("$xmlfile") done < <(find "$dir" -name "*.xml" -type f -print0) open -W "${files[@]}" done < <(awk '{print $2}'...
Passing filepaths containing spaces with xargs
You can use the xargs -I flag (if you have it I don't know what its portability is) to do this. grep -Fxv -f $TMPFILE /Users/foo/.htk | xargs -I % xattr -w com.apple.metadata:kMDItemFinderComment htk % ...
xargs does not read line by line properly
Converting comments into an answer Could your links file have CRLF (Windows or DOS style) line endings? In which case, the ? represents the CR (carriage return)… And the fix is to convert the DOS file into a Unix file somewhere along the line. For example: tr -d '\r' <...
Copy selected files in bash
This would result in 100 invocations of cp but you could just use a loop: count=0; for i in *; do cp "$i" ~/foo/bar; ((++count == 100)) && break; done Another way you could do this would be to use an array: files=( * ) cp "${files[@]:0:100}" ~/foo/bar The glob...
/usr/bin/find Argument list too long
I would pipe to grep: find -type f -name '*.ext' | grep -vFf list.txt When passing -f grep reads search patterns from a file. -v negates the search. Usually grep treats search patterns as regular expressions. If you -F grep will treat those as fixed strings....
How can heredocs be used with xargs?
Fixing the << 'EOF' heredoc direction would take some sh -c trickery that ended up causing even more problems, so I tried re-approaching the problem without requiring heredocs at all. I ended up landing on: inline() { # Ensure a file was provided in="${1?No input file specified}" # Create a...
Way to change xargs arguments to include a flag per argument?
Using the idea quite similar to @choroba's, you can get rid of grep altogether and use sed instead: tarsnap --list-archives | sed -n '/2014-06-09/s/^/-f /p' | xargs tarsnap -d ...
Xargs parallelism in Bash
linux,bash,shell,command-line-arguments,xargs
Ok, so: "xargs -P $max_parallel -n 1" is correct and 16 processes will be initiated? Or should n be equal to $max_parallel also? Think of several bill counters in a store and a huge number customers waiting to pay the bill. -P in analogy would be the number of...
passing command line arguments from xargs
bash,shell,sed,command-line-arguments,xargs
xargs works by taking a list of file names from standard input and running a command with all of the files it retrieves from standard input. If the length of standard input will overflow the command line buffer, xargs will divide up the list. Let's do something simple: ls |...
Search files and run a script on every result - Cont:
Nice to see you are using the snippet I wrote in the previous question! I would use this: while IFS= read -r file do awk -v file="$file" 'BEGIN { FS=OFS=","} \ { if ($11=="10") print $2,$3,$6,$10,$11,$17, file}' \ <(zcat "$file") >>Op_TT_Detail.txt done < <(find /cygdrive/c/Test/ -name TT_DETAIL*.gz) That is, with...
xargs: exec command with prompt
You can use xargs -a <(pacman -Q | awk '/xf86-video/{print $1}') pacman -R Explanation: Without further arguments xargs does not work with interactive (command line) applications. The reason for that is, that by defaultxargs gets its input from stdin but interactive applications also expect input from stdin. To prevent the...
Bash script find pattern and replace by filename
At finally I used a bucle as @arco444 has suggested: echo "Starting bucle" for f in $MAVENIZED_PATH/services/src/main/java/com/shn/*/server/service/impl/* do echo "Processing $f file..." SERVICE=$(echo "$(basename $f)" | sed 's/Impl//g' | sed 's/.java//g') echo "Service name: $SERVICE" sed -i "" "s/@Service/@Service(\""$SERVICE"\")/g" $f done ...
xargs (or something else) without space before parameter
You can use the -I option of xargs: git log | blabla | xargs -I% git rebase -i HEAD~% ...
integrate sed into find xargs copy shell command
I believe following will work for you: find "$SOURCEFOLDER" -type f -exec bash -c "sed -e 's/\[[^][]*\]//g' {} ; xargs -I {} ln {} "$ENDFOLDER/$TR_NEW_TORRENT_NAME/${basename}" \; Idea is to combine the commands this ways: another way is to use two -exec find "$SOURCEFOLDER" -type f -exec sed -e 's/\[[^][]*\]//g' {}\;...
xargs equivalent in perl
You could use the Proc::Background module. Particularly interesting is the sub timeout_system(..). Here's an example coming from the Proc::Background module page: use Proc::Background; timeout_system($seconds, $command, $arg1); timeout_system($seconds, "$command $arg1"); my $proc1 = Proc::Background->new($command, $arg1, $arg2); my $proc2 = Proc::Background->new("$command $arg1 1>&2"); $proc1->alive; $proc1->die; $proc1->wait; my $time1 = $proc1->start_time; my $time2...
Execute a command on a list of strings in Bash
You don't need to use xargs for this. You can use: find . -type f -name 'I*' -exec basename '{}' ';' If you are using GNU find, you don't need basename either: find . -type f -name 'I*' -printf %f\\n Here, %f is the GNU find printf format for "filename...
find in list of directories saved to a file
There is a way to do it — we can chain xargs-find-xargs-chmod: # Find unwritable files and chmod them xargs -I {} -0r -a $FILE_LIST find {} ! -perm -u+w -print0 | xargs -0r chmod -R 700 -v The full Bash script, thus, would be: FILE_LIST=`mktemp --suffix=.list` find ~/udit65_backup/ -maxdepth...
how to call xargs using script
You have to use subprocess.Popen if you want to send data to/from stdin/stdout of your subprocesses. And you have to Popen a subprocess for each of the executables, i.e. in your example, one for echo and one for xargs. There is an example in the docs: https://docs.python.org/2/library/subprocess.html#replacing-shell-pipeline Another here: Call...
Any way to show the commands generated by a command containing 'find', 'xargs'?
linux,shell,command-line,find,xargs
You could change that command to find . -name "*.png" |xargs -I{} echo "mycommand {}" If you just want to show the command before execute it, you could use -t option of xargs: find . -name "*.png" |xargs -t -I{} sh -c "mycommand {}" ...
xargs echo colored output
Perhaps this is for Linux (although OSX adds an interesting twist by reversing the roles of bash and echo). Linux's /bin/echo has a -e option which expands escapes of the sort you show, while some shells (such as dash, used in Debian) follow POSIX more closely, and do not do...
Correctly interpret newline characters
Try this: #!/bin/bash while read -ra line; do for tok in "${line[@]}"; do # make changes to $tok if need be printf "%s " "$tok" done echo done ...
Bash Xargs Sleep (Multiple Command Line Arguments)
The simplest solution would be to simply put the cli53 and sleep calls in a script and use xargs to execute the script. If you don't want to do that you should be able to do what you were trying to do with this: ... | xargs ... /bin/sh -c...
xargs split at newlines not spaces
Try: printf %b 'ac s\nbc s\ncc s\n' | xargs -d '\n' bash /tmp/test.sh You neglected to quote the \n passed to -d, which means that just n rather than \n was passed to xargs as the delimiter - the shell "ate" the \ (when the shell parses an unquoted string,...
GNU Parallel with sed wrong arguement as file
ls | parallel -q sed -i 's/<ga\//</g' ...
Xargs with command that has multiple parameters
You can use the -I option for xargs: nova list | grep SHUTOFF | cut '-d|' -f3 | xargs -I '{}' bash -c 'nova start {}' Alternatively you can loop over the results: for i in $(nova list | grep SHUTOFF | cut '-d|' -f3); do nova start $i; done...
xargs - does the program run in loop or get re-executed
linux,command-line,command-line-arguments,execution,xargs
The definition of the -n argument is as follows: --max-args=max-args, -n max-args Use at most max-args arguments per command line. Fewer than max-args arguments will be used if the size (see the -s option) is exceeded, unless the -x option is given, in which case xargs will exit. Hence, using...
How to execute a bunch of commands from a file with concurrency control?
$ cat file.txt echo 1 ; sleep 1 echo 2 ; sleep 1 echo 3 ; sleep 1 echo 4 ; sleep 1 ... echo 13 ; sleep 1 echo 14 ; sleep 1 Running it with xargs parallelization: xargs -a file.txt -I CMD --max-procs=2 sh -c CMD This seems...
How do I use the xargs command to read the content of a file?
Because xargs puts the line it is processing where you put the '{}'. You put it after the filename. Try su - db2inst1 -c "db2 get dbm cfg | grep DIAGPATH | grep -v ALT_DIAGPATH" | awk '{print $7}'| xargs -I '{}' tail -20 '{}'/db2diag.log ...
Copy large amout of files xargs
find -maxdepth 1 -mindepth 1 -exec cp -r -t /directry/destination {} ';' Example...
xargs doesn't work on Mac when given output from 'git branch'
I asked if you have colourization turned on forcibly, and the answer appears to be yes. To fix, find your ~/.gitconfig and change the colour stanza to more like: [color] ui = auto That does not force coloured output; if the output goes to a pipe, the colouring is dropped....
Delete directories with specific files in Bash Script
It looks like what you really want is to remove all empty directories, recursively. find . -type d -delete -delete processes the directories in child-first order, so that a/b is deleted before a. If a given directory is not empty, find will just display an error and continue....
Pipe grep output to xargs
The -Z option to grep only seems to apply to the filenames that contained the matched content not the content of the matching lines. That seems rather strange to me but that appears to be how it works. You don't actually need grep here though (you didn't need the *...
“mv: cannot stat” error when using find to move files via xargs
I've sussed it. Short answer: I was missing the -maxdepth 1 tag. The following command works find sourceDir -mindepth 1 -maxdepth 1 -print0 | xargs -0 mv --target-directory=destDir # as does find sourceDir -mindepth 1 -maxdepth 1 -exec mv --target-directory=destDir '{}' + Longer answer: My original find command was listing...
Running programs in parallel using xargs
bash,parallel-processing,xargs
From the xargs man page: This manual page documents the GNU version of xargs. xargs reads items from the standard input, delimited by blanks (which can be protected with double or single quotes or a backslash) or newlines, and executes the command (default is /bin/echo) one or more times with...
Execute bash function from find command
You could manually loop over find's results. find "$dir" -name "*.mod" -type f -print0 | while IFS= read -rd $'\0' file; do remodup "$file" done -print0 and -d $'\0' use NUL as the delimiter, allowing for newlines in the file names. IFS= ensures spaces as the beginning of file names...
Bash command with backticks inside of xargs
In this command... echo $TMPLIST | xargs -I{} -n 1 -P $MAXJOBS curl -o {}_$DATESTRING.dump \ `get-temp-url --location {}` ...the backtics are interpreted by the shell; they are never seen by xargs. You could do something like this: echo $TMPLIST | xargs -I{} -n 1 -P $MAXJOBS \ sh -c...
Strange errror while using find in batch script
xargs from my experience aren't working good in all cases, just as a proposition, try to use -exec, if you need fast solution to the problem find . -type f -size +1M -name "*.jpg" -exec convert {} -resize 1000x1000\> -verbose {} \; See if it will be helpful for you...
Multiple lines to single line in Linux
If all you want to do is read multiple lines on standard input and concatenate them to a single line then you can use a while loop with printf: while read line; do printf "$line"; done You can pipe the output of whatever other commands you have to that, e.g.:...