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How to call one shell script from another shell script?
...se /bin/sh to call or execute another script (via your actual script):
# cat showdate.sh
#!/bin/bash
echo "Date is: `date`"
# cat mainscript.sh
#!/bin/bash
echo "You are login as: `whoami`"
echo "`/bin/sh ./showdate.sh`" # exact path for the script file
The output would be:
# ./mainscri...
What does “not run” mean in R help pages?
...as changing it to \dontrun{}. The function is for downloading data from an ftp and the CRAN comment is: "That is not commented on in the .Rd files. Note that example() will run these sections".
– Jeffrey Evans
Jan 30 '15 at 14:48
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How can two strings be concatenated?
How can I concatenate (merge, combine) two values?
For example I have:
12 Answers
12
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Run cron job only if it isn't already running
...;& (ps -u $(whoami) -opid= |
grep -P "^\s*$(cat ${PIDFILE})$" &> /dev/null); then
echo "Already running."
exit 99
fi
/path/to/myprogram > $HOME/tmp/myprogram.log &
echo $! > "${PIDFILE}"
chmod 644 "${PIDFILE}"
...
Detecting syllables in a word
...lits words into phonemes, which are shorter than syllables (e.g. the word 'cat' is split into three phonemes: K - AE - T). but vowels also have a "stress marker": either 0, 1, or 2, depending on the pronunciation of the word (so AE in 'cat' becomes AE1). the code in the answer counts the stress ma...
Bash: Strip trailing linebreak from output
...k where your newline (or other special) characters are in your file using 'cat' and the 'show-all' flag. The dollar sign character will indicate the end of each line:
cat -A log.txt
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Have bash script answer interactive prompts [duplicate]
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I found the best way to send input is to use cat and a text file to pass along whatever input you need.
cat "input.txt" | ./Script.sh
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How to programmatically determine the current checked out Git branch [duplicate]
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Do not use cat .git/refs/heads/branch; use git rev-parse --verify refs/heads/branch. Refs can be packed, and the solution with cat would fail.
– Jakub Narębski
Nov 1 '09 at 9:06
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Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sie
.../mortimer/Projects/my_products
launchctl setenv ANDROID_NDK_HOME /Applications/android-ndk
launchctl setenv PATH $PATH:/Applications/gradle/bin
</string>
</array>
<key>RunAtLoad</key>
<true/>
</dict>
</plist>
You can add many launchctl c...
How can I reverse the order of lines in a file?
...
Also worth mentioning: tac (the, ahem, reverse of cat). Part of coreutils.
Flipping one file into another
tac a.txt > b.txt
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