Recent questions tagged shell

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shell - Delete positional parameters in Bash?

You can skip positional parameters with shift but can you delete positional parameters by passing the position? x(){ CODE; echo ... 4 5 6 7 8". See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - How to list only the file names in HDFS

I would like to know is there any command/expression to get only the file name in hadoop. I need to fetch only the ... HDFS_DIR>|cut -d ' ' -f17 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - How portable is mktemp(1)?

As the title suggests — can I be reasonably sure that mktemp will exist on any unix-y operating system I'm likely to encounter? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Echo string to .txt file with multiple lines - with Windows Batch file

I am attempting to create a Windows Batch File that creates a .txt with mulitple lines. I've tried several ... happen in a simple fashion? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - maven calls external script on both Linux and Windows platforms

I need to run an external script on both Linux and MS-Windows platforms. Do I use the right plugin exec- ... automatic and elegant solution... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Check folder size in Bash

I'm trying to write a script that will calculate a directory size and if the size is less than 10GB, and greater ... " ]; then echo "DONE" fi See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Python Script not running in crontab calling pysaunter

I have read multiple posts and many articles detailing that scipts in a cron job need to keep the environment variables ... on Mac 10.7.5. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Split JSON into multiple files

I have json file exported from mongodb which looks like: {"_id":"99919","city":"THORNE BAY"} {"_id":" ... data using anything that would suite? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Concatenating every other line with the next

In a text document I want to concatenate every other line with the next. I guess sed is the thing to use? How would this be done? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - find and remove files with space using find command on Linux

I'm trying to remove all thumbs.db files in a Windows partition using find command in Ubuntu: find . -iname "* ... there any bug in my command? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - extract words from a file

I'm trying to create a dictionary of words from a collection of files. Is there a simple way to print all the words in a file, one per line? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - How can I output null-terminated strings in Awk?

I'm working on a shell script that will be used by others, and may ingest suspect strings. It's based around ... these awks. Oh, legacy scripts. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - How do you run Vim in Windows?

I just installed gVim, and tried using the usual "vim myfile.java" technique that usually works for linux to ... , or some other technique? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - How to auto start an application in openwrt?

I have created a shell with necessary functions such as start() stop() restart() But my file is not ... wiki.openwrt.org/doc/techref/initscripts See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - command line locally using wamp

When referring to this post here: http://net.tutsplus.com/tutorials/javascript-ajax/start-using-html5-websockets- ... an alternative for WAMP? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Redirect output to a bash array

I have a file containing the string ipAddress=10.78.90.137;10.78.90.149 I'd like to place these two IP ... fix this? Thanks for the help! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Adding a shebang causes No such file or directory error when running my python script

I'm trying to run a python script. It works fine when I run it: python2.5 myscript.py inpt0 The problem ... to make this work with shebang? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Have Find print just the filenames, not full paths

I'm using the find command in a ksh script, and I'm trying to retrieve just the filenames, rather than the ... so the pathname doesn't matter. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Python, running command line tools in parallel

I am using Python as a script language to do some data processing and call command-line tools for number ... cannot be parallelized. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Remember GPG password when signing git commits

Would it be possible for the GPG password to be saved, so that I am not prompted for the passphrase everytime I make a git commit? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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shell - How to read output of sed into a variable

I have variable which has value "abcd.txt". I want to store everything before the ".txt" in a second ... .log" into the second variable? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - Is it possible to run JavaScript files from the command line?

I have several JS files so instead of copy and paste every one in the console window (Firefox and Chromium), ... are correct using console.log. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - How to Export a Multi-line Environment Variable in Bash/Terminal e.g: RSA Private Key

One of our Apps github-backup requires the use of an RSA Private Key as an Environment Variable. Simply attempting to ... too many "steps"...) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - How to use crontab in Android?

I can't find answer to my question: Is it possible to run crontab to reboot Android using busybox (or other ... for the impossible right now? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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shell - How can I launch powershell.exe with the "default" colours from the PowerShell shortcut?

I'm attached to the nice blue colour of the PowerShell window when you launch it from one of the pre- ... same settings as the shortcut? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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shell - Calling one Bash script from another Script passing it arguments with quotes and spaces

I made two test bash scripts on Linux to make the problem clear. TestScript1 looks like: echo "TestScript1 ... instead of the actual output. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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shell - using rot13 and tr command for having an encrypted email address

I have read many tutorials on the internet about the usage of the 'tr' command. However, I am not able to ... give a link or an example? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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shell - Override a variable in a Bash script from the command line

How do you override a variable in your Bash script from the command line? I know how to pass variables in, but ... like ./myscript.sh -Dvar=val. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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