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How do I list all cron jobs for all users?
...ktemp) || exit 1
# Add all of the jobs from the system-wide crontab file.
cat "${CRONTAB}" | clean_cron_lines | lookup_run_parts >"${temp}"
# Add all of the jobs from the system-wide cron directory.
cat "${CRONDIR}"/* | clean_cron_lines >>"${temp}" # */ <not a comment>
# Add each...
How to obtain the number of CPUs/cores in Linux from the command line?
...
cat /proc/cpuinfo | awk '/^processor/{print $3}' | tail -1 also will return the wrong number if the CPU numbers are 0-based.
– Phazor
May 4 '15 at 14:37
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Why does SIGPIPE exist?
... out of input even if their output pipe has been closed. Sure you can duplicate the behavior of SIGPIPE by explicitly checking for EPIPE and exiting, but the whole purpose of SIGPIPE was to achieve this behavior by default when the programmer is lazy.
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make arrayList.toArray() return more specific types
...); i++)
Array.set(temp, i, list.get(i));
}
catch (Exception e)
{return null;}
return temp;
}
Samples:
String[] s = arrayListToArray(stringList);
Long[] l = arrayListToArray(longList);
...
Tar archiving that takes input from a list of files
...tives I have tested: tar -cvf file.tar -I list.txt and tar -cvf file.tar $(cat list.txt)
– Nasri Najib
Sep 2 '19 at 8:37
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App Inventor 2 文本代码块 · App Inventor 2 中文网
...符串，则认为它在ASCII顺序上大于另一个字符串，比如：cat > Cat。
删除空格
删除输入字符串前面或尾部的任何空格并返回结果。注：不会删除中间的任何空格！
大写
返回转换为全部大写的文本字符串的副本。
小写
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Git command to show which specific files are ignored by .gitignore
...l answer 42009)
git ls-files -i
should work, except its source code indicates:
if (show_ignored && !exc_given) {
fprintf(stderr, "%s: --ignored needs some exclude pattern\n",
argv[0]);
exc_given ?
It turns out it need one more parameter after th...
Is there a TRY CATCH command in Bash
... need to check that a terminal app has been installed. I want to use a TRY/CATCH command to do this unless there is a neater way.
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View a file in a different Git branch without changing branches
...branch:path/to/your/file
you can also do multiple files and have them concatenated:
git show branchA~10:fileA branchB^^:fileB
You do not have to provide the full path to the file, relative paths are acceptable e.g.:
git show branchA~10:../src/hello.c
If you want to get the file in the local ...
How to pipe input to a Bash while loop and preserve variables after loop ends
Bash allows to use: cat <(echo "$FILECONTENT")
3 Answers
3
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