linux - How does cat lt; lt; EOF work in bash? - Stack Overflow The cat <<EOF syntax is very useful when working with multi-line text in Bash, eg when assigning multi-line string to a shell variable, file or a pipe Examples of cat <<EOF syntax usage in Bash: 1 Assign multi-line string to a shell variable $ sql=$(cat <<EOF SELECT foo, bar FROM db WHERE foo='baz' EOF )
Is there replacement for cat on Windows - Stack Overflow Windows type command works similarly to UNIX cat Example 1: type file1 file2 > file3 is equivalent of: cat file1 file2 > file3 Example 2: type * vcf > all_in_one vcf This command will merge all the vcards into one
How does an SSL certificate chain bundle work? - Stack Overflow Unix: cat cert2 pem cert1 pem root pem > cert2-chain pem Windows: copy A cert1 pem+cert1 pem+root pem cert2-chain pem A 2 2 Run this command openssl verify -CAfile cert2-chain pem cert3 pem 2 3 If this is OK, proceed to the next one (cert4 pem in this case) Thus for the first round through the commands would be
How to obtain the number of CPUs cores in Linux from the command line? $ cat proc cpuinfo | awk ' ^processor {print $3}' | tail -n 1 NOTE: Since proc cpuinfo holds a number of entries corresponding to the cpus count, a processor field initial value is 0, don't forget to increment the value of the last cpu core by 1
bash - How can I split a large text file into smaller files with an . . . cat x* > <file> Split a file, each split having 10 lines (except the last split): split -l 10 filename Split a file into 5 files File is split such that each split has same size (except the last split): split -n 5 filename Split a file with 512 bytes in each split (except the last split; use 512k for kilobytes and 512m for megabytes):