$ printf "The shell is: "$SHELL The shell is: /bin/bash[Admin@admin ~]$ Copy From the output, the current shell is Bash. 2.7. Printing Date and Time We can use printf command with format specifiers for a month, day, year, hour, minute, and second to print date and time. The ...
In bash, single quotes preceded by a$allows insertion of escape characters and so\nbecomes the new line character. Alternatively, we can useprintfto create the variable; printf -v foo "%s\n" "$(cat foo.txt)" Either works, so you can take your pick!
Getopts is a POSIX compatible bash built-in function that accepts short arguments like-h,-v,-b, etc. You cannot pass long arguments like--help,--version. If you want to parse long options there is another utility calledgetoptwhich is an external program and not bash built-in. There are ...
echo "i am a beginner" | awk -v FS="" '{for(i=NF;i>=1;--i) if(i==1) printf $i"\n";else printf $i }' rennigeb a ma i Solution 3: try this; #!/bin/bash echo "type:" read -a input for a in ${input[@]} do echo "you typed:$a" done rev<<<${input[@]} ...
for i in *.mp4; do ffmpeg -n -i "$i" -vf hflip -c:a copy hflip/"${i%.*}.mp4" > /tmp/log.out 2> /tmp/log.err bar=${bar/-/=} printf "%s\r" $bar done more /tmp/log.err After processing the files, the log will be shown, containing all the errors. Although it ...
else if (status == "R") desc="renamed"; else if (status == "T") desc="type changed"; else if (status == "U") desc="unmerged"; else if (status == "X") desc="unknown"; else if (status == "B") desc="pairing broken"; else desc=status; printf "%s %s\n", desc, file...
$ printf x > file Now, we can view thefileas [-b]inary via thexxdhex editor: $ xxd -b file 00000000: 01111000 x As we can see,xis01111000(ASCII code) in binary. Now, if we assume our secret key for encrypting this single character is+plus, we go through several steps: ...
(HEAD detached at FETCH_HEAD) master =>Compressing and cleaning up git repository =>Appending nvmsourcestring to /Users/runner/.bashrc =>Appending bash_completionsourcestring to /Users/runner/.bashrc +++++ nvm_echo /Users/runner/.nvm/versions/node +++++commandprintf'%s\n'/Users/runner/.nvm...
#include <stdio.h> #include "userheader.h" int main() { greeter_func(); printf("\nAdding 5 and 10 together gives us '%d'.\n", add(5, 10)); printf("Subtracting 10 from 32 results in '%d'.\n", sub(10, 32)); printf("If 43 is multiplied with 2, we get '%d'.\n", mu...
9 printf("%d\n",b); In the above example, whenever the given variable is read/written, gdb prints the old and new value and stops the execution of the program. Setting a read watchpoint for a variable using ‘rwatch’ rwatch is the command which is used to set a read watchpoint in...